Similarly to yesterday’s tip, suppose you’ve opened the Save As dialog box and have looked at one or more different folders or drives, and you want to go back to the one you were just looking at. You could click on that little green “Back” button up in the top center, next to the “Save in” or “Look in” drop-down list. But instead of clicking a button, you can just type Alt+1.

Each time you press Alt+1 you’ll go back another folder until you return to the one you started out looking at.