Woot.com
Sells 1 item a day (M-F) until it runs out. Goes live @ 1am EST each day. Mostly tech stuff but has some great deals. Be careful...it's addictive.

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All things Kevin Smith. 'Nuff said.

T-Shirt Hell
Just about as offensive as you can get, but if you can't laugh at this then you shouldn't be on the internet in the first place.