I used to, when i was younger. I haven't owned a bike in about six or seven years though, but they're handy for getting about so it might be something i invest in.
Pretty much everyone here in the Netherlands has a bike. Half of them use them every day. Like me, I use mine to go to school everyday except in the weekend.
I still ride a bike, a Schwinn. I've always wanted a motorcycle though. Since Harley Davidson is no longer American made I would have to go with and old Indian, fully restored and painted a dark ruby with so much top coat it looks wet.
I own a bike, but it is much too small for me. It was a mountain bike and a good one too. I'm thinking of buying a new one but I'm not too sure right now.