Well, I have been proven wrong. While I can get just about everything I want on Amazon.com, including weapons grade uranium, there are some items that warrant their own place on the Internet.
There are places with even more necessities on the web:
Think Geek! - nerdery, geeketry, dorktasia, and weirdo gear abound.
Neato Shop - "Neat" doesn't even begin to cover the crazy, "who the hell thought of that" items in this online store.
Threadless - You've never had a shirt this cool. In fact, the shirt may be cooler than you.
Perpetual Kid - The best place on the Internet to squander your allowance.
Archie McFee - Home of the Jesus Action Figure. 'Nuff said.
And finally, Stupid.com - the name says it all.
While these sites don't offer the "Prime" program that Amazon does, they're definitely worth a look.