Lifehacker recently pointed to a very useful new Windows 7 shortcut that vertically maximizes windows — really useful on laptops with 800 pixels or less of vertical real estate.
In that spirit, here’s another useful “shortcut”: Win+B gives focus to the “show hidden icons” button on the system tray.
This works on Windows XP and Vista as well, but is especially useful on Windows 7 because 7 corrals tray icons into their own box, where they’re not easily visible.
After pressing Win+B, press Enter to reveal the hidden icons and press the cursor keys to cycle through them (caveat, the highlight effect is really quite subtle on the RC and easy to miss).