Matt Yglesias is a political blogger who takes an interest in the politics of transportation. He makes an interesting point about biking in winter:

The top bike commuting city is Copenhagen, not San Diego. If people can bike to work in Denmark’s winter (I even saw plenty of people biking around Helsinki in December) then it can be done wherever you might be in the USA as well. Unfortunately, American mindspace about bicyling tends to be dominated by the insidious recreational bikers, who’ve gotten it into people’s heads that even on a lovely day for a bike ride the act of pedaling requires intricate performance gear including funny biking outfits. But bike commuting is a whole different ballgame — you’re just trying to get to work, so you should wear what you would wear.

Gosh, he makes it sound so easy! Check out his post for the rest of his thoughts, and some debate in his comment section.