Woot

Technically, it's an online retailer, but Woot qualifies for my list thanks to unique selling format, community atmosphere and, well, 99 percent of the stuff it sells it an absolute steal. Woot runs on a deal-a-day format with only one item on sale per day, and when they're gone, they're gone. You'll find everything from flashlights to fire alarms cropping up on the site, but even when the product disappoints, Woot's spiced-up product descriptions usually never fail to elicit a smile. Just don't buy when you're in a hurry - shipping can sometimes take ages.