Besides ebay and craigslist, what other sites can you find really cheap, good stuff on?

I like http://www.dealextreme.com It's in Hong Kong, and they sell all the cheap "Made in China" stuff that is normally way marked up in retail stores. Like when you wonder how a kitchen gadget can be $30 in a store, for a piece of plastic... well, it really is a $3 piece of plastic, and you can get it there for $3. I've bought a handful of useful things from dealextreme, especially some camera accessories that would normally cost me ten times as much in a US retail store (for example, a replacement Canon lens cap will be $15 at the camera store, and you can get it shipped for $2 from the site) and i've also bought some toys and random stuff for fun (for example, those LED key chain lights, 10 for $3) Shipping is free, and stuff arrives in around 10 business days to me in California, via regular mail, A lot of the stuff is indeed cheap crap, but you can still find some practical items.