Have a lot of windows open but really only want to focus on one thing right now? Sure, you could just full screen the window but what about when you want to get back to the desktop? You could go through and minimize everything but then you have to click through them again when you want them all back.
Windows 7 has a nice feature built in that minimizes every window except the one you want. Just click and hold on the top of the window you want to focus on then shake the mouse. All the other windows will minimize! Shake again and they’ll come back up like they were before!
It’s not a major feature but still pretty cool and really comes in handy if you’re doing a lot at once.