There's a stike of public transport workers in New York at the moment, so this article explains how to commute by bicycle, all of a sudden. And, it's a lot colder in New York than it will get here over the winter.
Once you start commuting by bike, it's awful if you have to stop. I've ridden my bike to and from work (3 miles each way) since February, and I've been doing an extra 8 mile round trip to teach a lesson in Hurworth one afternoon a week since September. But, I was off work with flu for a weekand the following week got the bus to work because I just didn't think I would make it on my bike, and it's awful. I miss the exercise in the morning and the chance to wind down after work, and I hate queueing for buses and sitting in traffic. I can't wait to get back on my bike in the wet and cold in January, it's way better than the alternatives.