The Undocumented Fill Shortcut
There are all sorts of keyboard shortcuts for filling selections, entire layers, and stuff like that, but if you look under the Edit menu, next to the Fill command, there’s a new little shortcut in CS2 for bringing up the Fill dialog itself (about time!). It’s Shift-F5 (PC: Shift-F5). However, there’s an undocumented keyboard shortcut that will do the same trick—it’s Shift-Delete (PC: Shift-Backspace). This is a good one to pull on your Photoshop buddies and co-workers as a Photoshop trivia question, because few people know it exists.