diff --git a/src/danielcortes/xyz/models/caja/CajaDAO.java b/src/danielcortes/xyz/models/caja/CajaDAO.java
index e40890f..fcd86eb 100644
--- a/src/danielcortes/xyz/models/caja/CajaDAO.java
+++ b/src/danielcortes/xyz/models/caja/CajaDAO.java
@@ -24,6 +24,7 @@
 
 package danielcortes.xyz.models.caja;
 
+import danielcortes.xyz.data.Configuration;
 import danielcortes.xyz.data.ConnectionHolder;
 
 import java.sql.ResultSet;
@@ -31,8 +32,12 @@ import java.sql.SQLException;
 import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public abstract class CajaDAO {
+    private static final Logger LOGGER = Logger.getLogger(Configuration.class.getName());
+
     protected ConnectionHolder connectionHolder;
 
     public abstract List<Caja> findAll();
@@ -47,13 +52,15 @@ public abstract class CajaDAO {
 
     public abstract void createCajasForMonth(LocalDate month);
 
-    protected List<Caja> cajasFromResultSet(ResultSet rs) throws SQLException {
+    List<Caja> cajasFromResultSet(ResultSet rs) throws SQLException {
         List<Caja> cajaList = new ArrayList<>();
         while (rs.next()) {
             Caja caja = new Caja();
             caja.setId(rs.getInt("id"));
             caja.setFecha(LocalDate.parse(rs.getString("fecha")));
             cajaList.add(caja);
+
+            LOGGER.log(Level.FINER, "Se a creo: {0}", caja);
         }
         return cajaList;
     }
diff --git a/src/danielcortes/xyz/models/caja/SQLiteCajaDAO.java b/src/danielcortes/xyz/models/caja/SQLiteCajaDAO.java
index 82935fc..0ce2f16 100644
--- a/src/danielcortes/xyz/models/caja/SQLiteCajaDAO.java
+++ b/src/danielcortes/xyz/models/caja/SQLiteCajaDAO.java
@@ -80,7 +80,7 @@ public class SQLiteCajaDAO extends CajaDAO {
             ps.setInt(1, id);
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "QUERY: {0} | values [{1}]", new Object[]{query, id});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, id});
 
             caja = this.cajasFromResultSet(rs).get(0);
 
@@ -102,7 +102,7 @@ public class SQLiteCajaDAO extends CajaDAO {
             ps.setString(1, fecha.toString());
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "QUERY: {0} | values [{1}]", new Object[]{query, fecha});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, fecha});
 
             List<Caja> cajaList = this.cajasFromResultSet(rs);
 
@@ -128,7 +128,7 @@ public class SQLiteCajaDAO extends CajaDAO {
             updates = ps.executeUpdate();
 
 
-            LOGGER.log(Level.FINE, "QUERY: {0} values [{1}]", new Object[]{query, caja.getFecha().toString()});
+            LOGGER.log(Level.FINE, "QUERY: {0} values: {1}", new Object[]{query, caja.getFecha().toString()});
 
             ps.close();
 
@@ -161,7 +161,7 @@ public class SQLiteCajaDAO extends CajaDAO {
             ps.setInt(2, caja.getId());
             updates = ps.executeUpdate();
 
-            LOGGER.log(Level.FINE, "QUERY: {0} | values [{1},{2}]", new Object[]{query, caja.getFecha().toString(), caja.getId()});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: [{1},{2}]", new Object[]{query, caja.getFecha().toString(), caja.getId()});
 
 
             ps.close();
diff --git a/src/danielcortes/xyz/models/calculo_fondo/CalculoFondoDAO.java b/src/danielcortes/xyz/models/calculo_fondo/CalculoFondoDAO.java
index 1bb87f1..89291ba 100644
--- a/src/danielcortes/xyz/models/calculo_fondo/CalculoFondoDAO.java
+++ b/src/danielcortes/xyz/models/calculo_fondo/CalculoFondoDAO.java
@@ -24,6 +24,7 @@
 
 package danielcortes.xyz.models.calculo_fondo;
 
+import danielcortes.xyz.data.Configuration;
 import danielcortes.xyz.data.ConnectionHolder;
 import danielcortes.xyz.models.caja.Caja;
 import danielcortes.xyz.models.caja.SQLiteCajaDAO;
@@ -32,8 +33,12 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public abstract class CalculoFondoDAO {
+    private static final Logger LOGGER = Logger.getLogger(Configuration.class.getName());
+
     protected ConnectionHolder connectionHolder;
 
     public abstract List<CalculoFondo> findAll();
@@ -61,6 +66,9 @@ public abstract class CalculoFondoDAO {
             calculoFondo.setDescripcion(rs.getString("descripcion"));
             calculoFondo.setCaja(caja);
             calculoFondoList.add(calculoFondo);
+
+            LOGGER.log(Level.FINER, "Se a creo: {0}", calculoFondo);
+
         }
         return calculoFondoList;
     }
diff --git a/src/danielcortes/xyz/models/calculo_fondo/SQLiteCalculoFondoDAO.java b/src/danielcortes/xyz/models/calculo_fondo/SQLiteCalculoFondoDAO.java
index 1a79cbd..fd4c5ed 100644
--- a/src/danielcortes/xyz/models/calculo_fondo/SQLiteCalculoFondoDAO.java
+++ b/src/danielcortes/xyz/models/calculo_fondo/SQLiteCalculoFondoDAO.java
@@ -52,7 +52,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             PreparedStatement ps = conn.prepareStatement(query);
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0}", query);
+            LOGGER.log(Level.FINE, "QUERY: {0}", query);
 
             calculoFondoList = this.cajasFromResultSet(rs);
 
@@ -73,7 +73,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(1, caja.getId());
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con caja_id = {1}", new Object[]{query, caja.getId()});
+            LOGGER.log(Level.FINE, "QUERY: {0}  | values: [{1}]", new Object[]{query, caja.getId()});
 
             calculoFondoList = this.cajasFromResultSet(rs);
 
@@ -94,7 +94,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(1, id);
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con id = {1}", new Object[]{query, id});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: [{1}]", new Object[]{query, id});
 
             calculoFondo = this.cajasFromResultSet(rs).get(0);
 
@@ -117,7 +117,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(3, calculoFondo.getCaja().getId());
 
             updates = ps.executeUpdate();
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con valor = {1}, descripcion = {2}, caja_id = {3}. se realizaron {4} updates", new Object[]{query, calculoFondo.getValor(), calculoFondo.getDescripcion(), calculoFondo.getCaja().getId(), updates});
+            LOGGER.log(Level.FINE, "QUERY {0} | values: [{1},{2},{3}] | updates: {4}", new Object[]{query, calculoFondo.getValor(), calculoFondo.getDescripcion(), calculoFondo.getCaja().getId(), updates});
 
             ps.close();
 
@@ -149,7 +149,8 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(4, calculoFondo.getId());
 
             updates = ps.executeUpdate();
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con valor = {1}, descripcion = {2}, caja_id = {3}, id = {4}. se realizaron {5} updates", new Object[]{query, calculoFondo.getValor(), calculoFondo.getDescripcion(), calculoFondo.getCaja().getId(), calculoFondo.getId(), updates});
+            LOGGER.log(Level.FINE, "QUERY {0} | values: [{1},{2},{3},{4}] | updates: {5}", new Object[]{query, calculoFondo.getValor(), calculoFondo.getDescripcion(), calculoFondo.getCaja().getId(), updates});
+
 
             ps.close();
         } catch (SQLException e) {
@@ -168,7 +169,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(1, calculoFondo.getId());
             updates = ps.executeUpdate();
 
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con id = {1}. Se realizaron {2} updates", new Object[]{query, calculoFondo.getId(), updates});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1} | updates: {2}", new Object[]{query, calculoFondo.getId(), updates});
 
             ps.close();
         } catch (SQLException e) {
@@ -187,7 +188,7 @@ public class SQLiteCalculoFondoDAO extends CalculoFondoDAO {
             ps.setInt(1, caja.getId());
             ResultSet rs = ps.executeQuery();
 
-            LOGGER.log(Level.FINE, "Se ejecuta query: {0} con caja_id = {1}", new Object[]{query, caja.getId()});
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, caja.getId()});
 
             rs.next();
             sum = rs.getInt(1);
diff --git a/src/danielcortes/xyz/models/documentos/DocumentosDAO.java b/src/danielcortes/xyz/models/documentos/DocumentosDAO.java
index 6a6e0ee..bcbafb7 100644
--- a/src/danielcortes/xyz/models/documentos/DocumentosDAO.java
+++ b/src/danielcortes/xyz/models/documentos/DocumentosDAO.java
@@ -24,6 +24,7 @@
 
 package danielcortes.xyz.models.documentos;
 
+import danielcortes.xyz.data.Configuration;
 import danielcortes.xyz.data.ConnectionHolder;
 import danielcortes.xyz.models.caja.Caja;
 import danielcortes.xyz.models.caja.CajaDAO;
@@ -33,8 +34,12 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public abstract class DocumentosDAO {
+    private static final Logger LOGGER = Logger.getLogger(Configuration.class.getName());
+
     protected ConnectionHolder connectionHolder;
 
     public abstract List<Documentos> findAll();
@@ -66,7 +71,10 @@ public abstract class DocumentosDAO {
             documentos.setTarjetas(rs.getInt("tarjetas"));
             documentos.setRetiros(rs.getInt("retiros"));
 
+            LOGGER.log(Level.FINER, "Se a creo: {0}", documentos);
+
             documentosList.add(documentos);
+
         }
         return documentosList;
     }
diff --git a/src/danielcortes/xyz/models/documentos/SQLiteDocumentosDAO.java b/src/danielcortes/xyz/models/documentos/SQLiteDocumentosDAO.java
index aa73976..d3f1a61 100644
--- a/src/danielcortes/xyz/models/documentos/SQLiteDocumentosDAO.java
+++ b/src/danielcortes/xyz/models/documentos/SQLiteDocumentosDAO.java
@@ -24,6 +24,7 @@
 
 package danielcortes.xyz.models.documentos;
 
+import danielcortes.xyz.data.Configuration;
 import danielcortes.xyz.data.SQLiteConnectionHolder;
 import danielcortes.xyz.models.caja.Caja;
 
@@ -33,8 +34,12 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public class SQLiteDocumentosDAO extends DocumentosDAO {
+    private static final Logger LOGGER = Logger.getLogger(Configuration.class.getName());
+
     public SQLiteDocumentosDAO() {
         this.connectionHolder = new SQLiteConnectionHolder();
     }
@@ -43,15 +48,18 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public List<Documentos> findAll() {
         List<Documentos> documentosList = new ArrayList<>();
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("select * from documentos");
+            String query = "select * from documentos";
+            PreparedStatement ps = conn.prepareStatement(query);
             ResultSet rs = ps.executeQuery();
 
+            LOGGER.log(Level.FINE, "QUERY: {0}", query);
+
             documentosList = this.documentosFromResultSet(rs);
 
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
         }
         return documentosList;
     }
@@ -60,11 +68,13 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public Documentos findById(int id) {
         Documentos documentos = null;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("select * from documentos where id = ?");
+            String query = "select * from documentos where id = ?";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, id);
-
             ResultSet rs = ps.executeQuery();
 
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, id});
+
             List<Documentos> documentosList = this.documentosFromResultSet(rs);
             if (documentosList.size() > 0) {
                 documentos = documentosList.get(0);
@@ -73,7 +83,7 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
         }
         return documentos;
     }
@@ -82,11 +92,13 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public Documentos findByCaja(Caja caja) {
         Documentos documentos = null;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("select * from documentos where caja_id = ?");
+            String query = "select * from documentos where caja_id = ?";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, caja.getId());
-
             ResultSet rs = ps.executeQuery();
 
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, caja.getId()});
+
             List<Documentos> documentosList = this.documentosFromResultSet(rs);
             if (documentosList.size() > 0) {
                 documentos = documentosList.get(0);
@@ -95,7 +107,7 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
         }
         return documentos;
     }
@@ -104,24 +116,31 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public boolean insertDocumentos(Documentos documentos) {
         int updates;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("insert into documentos (cheques, tarjetas, retiros, caja_id) values (?,?,?,?)");
+            String query = "insert into documentos (cheques, tarjetas, retiros, caja_id) values (?,?,?,?)";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, documentos.getCheques());
             ps.setInt(2, documentos.getTarjetas());
             ps.setInt(3, documentos.getRetiros());
             ps.setInt(4, documentos.getCaja().getId());
-
             updates = ps.executeUpdate();
+
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: [{1}, {2}, {3}, {4}]", new Object[]{query, documentos.getCheques(), documentos.getTarjetas(), documentos.getRetiros(), documentos.getCaja().getId()});
+
             ps.close();
 
-            ps = conn.prepareStatement("select last_insert_rowid()");
+            query = "select last_insert_rowid()";
+            ps = conn.prepareStatement(query);
             ResultSet rs = ps.executeQuery();
+
+            LOGGER.log(Level.FINE, "QUERY: {0}", query);
+
             rs.next();
             documentos.setId(rs.getInt(1));
 
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
             return false;
         }
         return updates > 0;
@@ -131,21 +150,27 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public boolean insertDefaultDocumentos(Documentos documentos) {
         int updates;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("insert into documentos (cheques, tarjetas, retiros, caja_id) values (0,0,0,?)");
+            String query = "insert into documentos (cheques, tarjetas, retiros, caja_id) values (0,0,0,?)";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, documentos.getCaja().getId());
-
             updates = ps.executeUpdate();
+
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, documentos.getCaja().getId()});
+
             ps.close();
 
             ps = conn.prepareStatement("select last_insert_rowid()");
             ResultSet rs = ps.executeQuery();
+
+            LOGGER.log(Level.FINE, "QUERY: {0}", query);
+
             rs.next();
             documentos.setId(rs.getInt(1));
 
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
             return false;
         }
         return updates > 0;
@@ -155,7 +180,8 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public boolean updateDocumentos(Documentos documentos) {
         int updates;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("update documentos set tarjetas = ?, cheques = ?, retiros = ?, caja_id = ? where id = ?");
+            String query = "update documentos set tarjetas = ?, cheques = ?, retiros = ?, caja_id = ? where id = ?";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, documentos.getTarjetas());
             ps.setInt(2, documentos.getCheques());
             ps.setInt(3, documentos.getRetiros());
@@ -163,9 +189,11 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
             ps.setInt(5, documentos.getId());
             updates = ps.executeUpdate();
 
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: [{1}, {2}, {3}, {4}]", new Object[]{query, documentos.getCheques(), documentos.getTarjetas(), documentos.getRetiros(), documentos.getCaja().getId(), documentos.getId()});
+
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
             return false;
         }
         return updates > 0;
@@ -175,14 +203,16 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public boolean deleteDocumentos(Documentos documentos) {
         int updates;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("delete from documentos where id = ?");
+            String query = "delete from documentos where id = ?";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, documentos.getId());
-
             updates = ps.executeUpdate();
 
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, documentos.getCaja().getId()});
+
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
             return false;
         }
         return updates > 0;
@@ -192,17 +222,20 @@ public class SQLiteDocumentosDAO extends DocumentosDAO {
     public int getTotalDocumentos(Caja caja) {
         int total = 0;
         try (Connection conn = connectionHolder.getConnection()) {
-            PreparedStatement ps = conn.prepareStatement("select cheques + tarjetas + retiros from documentos where caja_id = ?");
+            String query = "select cheques + tarjetas + retiros from documentos where caja_id = ?";
+            PreparedStatement ps = conn.prepareStatement(query);
             ps.setInt(1, caja.getId());
-
             ResultSet rs = ps.executeQuery();
+
+            LOGGER.log(Level.FINE, "QUERY: {0} | values: {1}", new Object[]{query, caja.getId()});
+
             rs.next();
             total = rs.getInt(1);
 
             rs.close();
             ps.close();
         } catch (SQLException e) {
-            e.printStackTrace();
+            LOGGER.log(Level.SEVERE, e.toString(), e);
         }
         return total;
     }