There needs to be some sort of 'multiple' catagory. I commuted on 6 different bikes this year. My main all weather bike is a flat bar touring with fenders and heavy duty racks. I also have a 1980's steel 12 speed converted to flat bar. On nice sunny days I take one of 2 vintage road bikes. In winter it is a ridgid mountain bike with studded tires and industial fenders. Last week I added number 6 when I mounted studded tires on the 700 wheels of a flat bar hybrid to see how they compare to the 26" studded tires. I'm lucky to have a large garage and a 10 mile round trip commute, so I can make the trip on almost any bike.