Had a service appt yesterday morning which I should have rescheduled due to weather, but how bad could it be (I asked myself) if they're only predicting a dusting to 1" of snow, starting in the afternoon? Answer: very, very bad. Turned out to be more like 3" by the time I headed home, and it's been so cold lately that every flake stuck on road surfaces. I literally could not drive slow enough. At 15 mph, I had trouble going in a straight line on a flat road. Everyone else is flying by me. I have Michelin PS2s. Twice, I totally lost control going down very gentle grades near my house; fortunately, the car recovered before I hit anything. I should have know better. Next time, the car stays home.