Screenshot Tip of the Weekend
When taking screen shots, on OS X. Like normal you would probably hit Command-Shift-4 To take a shot of just part of the screen, but if you just want one window, tap the space bar and your cursor will change from a crosshair into a little camera. Now you can just click on the window you want to capture, and vola, you have a nice little picture of just that window. And as an added bonus you don't have what used to be behind that window showing through on the rounded corners or anything.