I'm considering visiting either Vancouver alone or else Seattle and Vancouver together over a week to 10 days period in mid December. I will be by myself.
Summer would have been the best time to go, but this is the time I have available. At least I should expect cheaper rates for everything.

I am not a skier. Is there enough for tourists to see and do in Vancouver during typical December weather?
I don't want to drive on icy roads, so I would probably try to rely on public transportation, tour buses and trains to see sights instead of renting a car.