8. On most cell phones, press the Send key to open up a list of recent calls. Instead of manually dialing, you can return a call by highlighting one of these calls and pressing Send again.

9. When someone sends you some shocking e-mail and suggests that you pass it on, don’t -- at least not until you’ve first confirmed its truth at snopes.com, the Internet’s authority on e-mailed myths. This includes get-rich schemes, Microsoft/AOL cash giveaways, and nutty scare-tactic messages about Presidential candidates.

10. You can tap the Space bar to scroll down on a Web page one screen. Add the Shift key to scroll back up.

11. When you’re filling in the boxes on a Web page (like City, State, Zip), you can press the Tab key to jump from box to box, rather than clicking. Add the Shift key to jump through the boxes backwards.

12. You can adjust the size and position of any window on your computer. Drag the top strip to move it; drag the lower-right corner (Mac) or any edge (Windows) to resize it.