When organizing a lot of files, you'll also probably have a lot of different windows open. Move the pictures to this directory, move these documents to that work folder...oops, closed that work folder.
Now you need to dig back through the directory hierarchy to open it and make your drag-and-drop organization method fast again. This annoying occurrence can be prevented with a simple app for Windows that will let you reopen your last-closed window.
Step 1: Download and extract UndoClose.
Step 2: Run the program by double-clicking on the program icon in the directory you extracted it to.
Step 3: Right-click on the System Tray icon and click on Settings from the menu that appears.
Step 4: Adjust the hot keys by first clicking on the area where the current hot key is displayed, and then pressing your new desired key combination. Click on the Change button to save these hot keys.
Step 5: When the need presents itself, press the key combination set to reopen the window or program. Alternatively, you can quickly open a window or program by double-clicking its entry in the Settings window.
Unfortunately, you can't open your last IM or last editing tool in Photoshop, but the app is still relatively useful for file and folder organization purposes.