Me too, when I was in college, most of the time I didn't even have a car. Even got pretty good at riding it in ice and snow, which is tricky at best, especially because this was an old-fashioned ten speed with the curled handle bars and smooth road tires. ;~D
Heh...the very few times I went out when there was still ice on dirt trails, I went down on each and every patch, I think. Bike went one way, I went the other.
I did NOT get good at it.
Rode to work in the spring, summer and fall in Germany, but ice and snow didn't like me. That ride was nice, though. Sembach is built on a hill, and the way to work was ALL uphill, but that was in the morning when it was cool. In the afternoon, I just had to peddle around the one-way circle at the top of the hill and coast down from there.
Heh, I never had to worry about ice and snow, but it would get down into the 40s in the winter; at least it felt cold to me. I laugh now when I think of the temps down there when I'm up here and most days in the winter don't even go above 20, much less above freezing!