Ever tell yourself you are going to get more efficient by learning some more "hot keys" and "keyboard shortcuts"? Most of us do, but then we never get around to it. Because they are too hard to find? Or the only ones we learn are the tips and tricks your workmates show you.
I just stumbled across this free app from the Mac appstore called Cheat Sheet. It is very simple software to help you find and remember all those shortcuts. Simply install it and when you keep the command key depressed for several seconds, it will display a list of key commands available in the current application. Genius!