Which helmet do you use?

[kfergos]

The Bell makes me look like a big mushroom head, but it's very comfortable.

For some reason this makes me laugh.

I don't even remember what kind of helmet I have -- a Bell, I think. It works and it does make me look mushroom head-y too. Good thing cycling isn't about looking stylish... *dodges thrown rotten veggies*

Oh - on another note, how do you decide when to get a new helmet? Just wait until it breaks or you crash?