just wondering what you guys usually wear when commuting by bike --- should i at least get a pair of bike shorts? i come into work pretty casually (polo shirt and pants [cords, jeans, cargo, khaki, etc]; sometimes shorts). i've never commuted by bike anywhere since middle school. i'm thinking i'll get pretty sweaty, so it's probably good if i at least wear *exercise* clothes and then change before starting at work yeah?
also, any advice on a good helmet to pick up?