One of the arguments against bike commuting that never quite makes sense to me is, "But you have all that extra stuff to deal with!" Have you heard that one? The helmet, the jacket, the lock, blah blah blah blah. And it's actually true -- bike commuting has its accessories. Here's my usual load for quasi-coldish weather:
Helmet (no pro- or anti-flame wars, please), a reflective band to keep my pants out of the chain, hat, gloves, light jacket, and a medium-sized man purse (er, messenger bag) that usually houses a few tools, my lunch, some coffee, and my glasses. The lock stays on the bike rack (per the advice of the late, great Sheldon Brown). Sometimes I'll have a water bottle too. If I'm feeling like a neatnik, I'll wad all the clothes up into the bag when I get off the bike and clip the helmet to a bag strap. If I'm feeling late and/or messy (which is most of the time), I just shove the wad of clothes into the helmet and carry it separately. The Great Corporate Overlord provides me with a narrow little locker where this all gets shoved during the day, until it's time to suit up again for the ride home.
Kind of a nuisance, no? Lots of junk to deal with? Lots of space taken up in a tiny cubicle cell? But the thing is, most of the people who tell me they'd hate to have to figure out what to do with all that stuff bring one of these to work instead:
By my rough calculations, that's about a zillion times more stuff (by weight or volume, take your pick) than what I carry. And those same people who tsk-tsk at the poor bastard on the bike who has to figure out what to do with his two cubic feet of bag usually do so as they're circling the block, looking (in vain) for a place to store their half ton of steel for the day.
Now if I could just get the Great Corporate Overlord to convert that parking space I'm not using into secured bike parking, I'd be in business...