Another reason bikes are the best way to get around in a city: The snowstorm has had pretty much zero impact on my commute.
Yesterday, I took the skinny tire road bike. A little squirrelly in places on the way home last night, but nothing too hairy. It was fun to pass all the cars backed up on Pike Street.
Today, because there is so much ice, I busted out the studded tires (photo above). You can ride across sheer ice like nothing with those puppies, though they're not so hot on bare pavement.
Meanwhile, last night my wife got the car stuck on some ice and had to walk home.