Originally Posted by
kommisar
None. I try to buy everything from my favorite local bike stores. I like having experts around to ask questions so I support these important local businesses.
Let's stretch the OP's question a bit: what do you buy extras of when they're on sale (or not) at your LBS?
For example, I recently stopped by mine to get a new chain for my fixed-gear, and picked up two while I was there.