Now, don't go thinking I'm too badass..
The commute is relatively short; about 8km (5mi) because you should live where you work, right?
There is also a paved, plowed and salted bike path, nicely separated from traffic for about 90% of the ride.
The cold is not really as big an issue as overheating! I'm far more concerned with the rain. Then we'll see how badass I am!