I'm not advocating wearing only cotton (remember I also included a coat for cold weather - if I recall it was made of some Nylon crap). I just think cotton is the most comfortable fabric for everyday use - and I'd much rather sweat in cotton than in lycra. And I agree, for cold weather, wool is best. My point - I like all those natural fabrics and I think the plastic ones are overrated. Okay, they're reasonably good insulators for their weight, but I hate them sooo much - cheap, sweaty plastic garbage!

Getting back to the point of the thread, I just don't see a need to complicate a commute, other than bringing the usual extra clothing you'd wear for a colder season. I've always ridden my bike in everyday clothes. I see no reason for buying specialized clothing for a simple commute. An overnight winter wilderness trip, or a 3 month SAS survival course, would naturally be a different kettle of fish. I just don't see a 30 minute commute becoming that sort of thing, unless society really suffers a catastrophic breakdown.