diff --git a/config.json b/config.json
index dd72863..2e877ac 100644
--- a/config.json
+++ b/config.json
@@ -1 +1 @@
-{"loggingLevel": "DEBUG"}
\ No newline at end of file
+{"loggingLevel": "ERROR", "directories": {"ASSET": null, "CUST": null, "DOB": null, "FIN": null, "output": null}}
\ No newline at end of file
diff --git a/main.py b/main.py
index 74db68a..6816555 100644
--- a/main.py
+++ b/main.py
@@ -36,6 +36,7 @@ def open_error_dialog(errorLabel: str, errorDescription: str, errorText: str):
 
 # Used to easily record uniform timestamps
 now = lambda : dt.now().strftime("%H:%M-%S.%f")
+fileRoot = lambda filePath : '/'.join(filePath.split('/')[:-1])
 
 # This class is responable for managing the UI of the application
 # and connection it to the functionality of ILParser.py
@@ -94,12 +95,16 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
         self.processButton.setEnabled(ready)
     
     def _set_file(self, lineEdit: QtWidgets.QLineEdit, selfFile: Literal["ASSET", "CUST", "DOB", "FIN"]) -> Optional[str] :
-        selectedFile: list[str] = QtWidgets.QFileDialog.getOpenFileName(self, "OpenFile")
+        defaultLocation = self._default_location(selfFile)
+        selectedFile: list[str] = QtWidgets.QFileDialog.getOpenFileName(self, "OpenFile", directory=defaultLocation)
         debug(f"Selected file: {selectedFile}")
         lineEdit.setText(selectedFile[0])
         file = selectedFile[0] if selectedFile[0] != '' else None
+        if file!= None:
+            self._default_location(selfFile, set=fileRoot(file))
         if file != None and self.outputLocation == None:
-            self._auto_output_set(fileRoot='/'.join(file.split('/')[:-1]))
+            # Output will may be from memory, or based on file root
+            self._auto_output_set(fileRootStr=fileRoot(file))
         if selfFile == "ASSET":
             self.assetFile = file
         elif selfFile == "CUST":
@@ -113,10 +118,28 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
     def _set_output(self):
         self.outputLocation = QtWidgets.QFileDialog.getSaveFileName(self, "Output file name") if QtWidgets.QFileDialog.getSaveFileName(self, "Output file name") != '' else None
         self.outputLE.setText(self.outputLocation if self.outputLocation != None else '')
+        self._default_location("output", set=fileRoot(self.outputLocation), overwrite=True)
         debug(f"Output Location: {self.outputLocation}")
 
-    def _auto_output_set(self, fileRoot):
-        self.outputLocation = fileRoot + f"/Portfolio Contracts - {dt.now().strftime('%Y-%m-%d')}.xlsx"
+    def _default_location(self, file: Literal["ASSET", "CUST", "DOB", "FIN", "output"], set: str = None, overwrite: bool = False) -> Optional[str]:
+        # Gets the default location for the a file
+        # Set if set provided and default location is not set
+        # Will always overwrite the default location if overwrite is True
+        defaultLocation = config["directories"][file]
+        debug(f"Default location: {defaultLocation}")
+        if set != None:
+            debug(f"Setting default location to: {set} | ({(overwrite | (defaultLocation == None))})")
+            config["directories"][file] = set if (overwrite | (defaultLocation == None)) else defaultLocation
+            with open("config.json", 'w') as configFile:
+                dump(config, configFile)
+            return set
+        else:
+            return defaultLocation
+
+    def _auto_output_set(self, fileRootStr):
+        # Check the config for a saved output location    
+        self.outputLocation = fileRootStr + f"/Portfolio Contracts - {dt.now().strftime('%Y-%m-%d')}.xlsx"
+        self._default_location("output", set=fileRoot(self.outputLocation), overwrite=False)
         self.outputLE.setText(self.outputLocation if self.outputLocation != None else '')
         debug(f"Auto set output: {self.outputLocation}")
 
diff --git a/todo.txt b/todo.txt
index 897a710..5579448 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,4 +1,4 @@
 [X] Working log level button 
 [X] Open file button
 [X] Error Dialog
-[ ] Directory memory
\ No newline at end of file
+[X] Directory memory
\ No newline at end of file