Locking Windows XP

At work, whenever I step away from my computer, I reflexively press CONTROL-ALT-DELETE and ENTER to lock my Windows 2000 workstation. My laptop, which is generally open on my desk, runs Windows XP. The same three fingered salute doesn't work in XP. Luckily, if your keyboard includes a Windows key, there's an easy key combination to lock XP: Hold down the Windows key and press L. If you're without a Windows key, there are other slightly more complicated options.