Windows 7 has a lot of neat new features (such as Aero Peek) that help you see what's behind a window, but reader Verygoodyear shares a very simple, one-key solution for any Windows version that, surprisingly, is new to us.
When moving a window in Windows, if you move the window, keep your finger held down on the mouse and then press Esc, it puts it back where you got it from.
Some of you may have known about this before, but we were a little shocked when we read Verygoodyear's tip — it's perfect for checking what's going on behind the front-most one without disrupting your window layout and you don't need to activate Aero Peek to do it. Were we just incredibly slow on the uptake on this one (it works all the way back to XP), or is this simple-but-useful shortcut new to you, as well? Let's hear it in the comments.