I'll use any excuse to ride a bike, and riding to work is the best of them. I get two 10 mile rides in that way, work is just an interruption to my riding. And like Tom, I enjoy the scenery here in NYC. I've even made a few friends this way. My favorite part of the ride is the Manhattan Bridge, I'm out of the traffic completely on the bridge, and can watch the subway go by too, the same train I would otherwise take, although it tends to rattle my teeth.

I can do the 10 miles from my house in Brooklyn to my office on 42nd St almost entirely off street, with Prospect Park, the Manhattan Bridge, and the East Side Bikeway being about 75% of my ride. The rest of the way is on streets with bike lanes, except for the residential stretch from my house to the park.

My modest goal is to ride 100 miles per week, and if I commute twice I've hit 40. The other 60 are then easily done on the weekend.