Brian asked...
How the hell can all of you wash and wax your car at this time of year?
Um, I don't

My three layers of wax were before Halloween, and all on 60 degree or warmer days (at least the washing part of it). I have the advantage of a garage, so I don't need to have daylight to wax, just to wash.
Unless I'm lucky, and get a warm Saturday, I'm done until spring. There isn't enough daylight left to hadwash after work during the week anymore

I will wash it in the coin op at least once a week, and now this winter I'm going to try the Quik Detailer after I get it home and in the garage again to see if that keeps it better.
And yes, I have washed it in enough cold and wind that the warm rinse water froze on one side while I was still rinsing the other side. And yes, it usually is warm enough at least once in January or February to hand wash and wax it, assuming you can leave work early enough to have daylight. I could do that at the previous job, but probably not this one.