Yesterday was the first snow since I started commuting by bike. I chickened out and took the car. So it took me 2 hrs instead of 30 minutes and every few minutes someone whizzed by me on a bike.
Big mistake - today I was back on the bike. The snow had turned to slush, my toes turned to icicles and I had a great ride in. The most interesting part was the first half mile from my house where the snow was mainly undisturbed - my road tyres cut through it pretty nicely and I was really impressed with how much grip I had - even under braking.