Is is possible to wax too often? I've always put on as much as possible, maybe every 1-2 weeks I'll use Meguiars NXT. As it gets colder, I wash and wax it less, but I try to have at least a 1/2 dozen good coats of wax before winter. Still by Spring there's no beading left. I do drive it every day in winter and try to wash it when the temp is above freezing, but really maybe a 2-3 times per winter. Also in Chicago there's LOTS of salt.

After 19 months and 20k miles of my ownership and 18 months and 4k miles from the previous owner there are now swirls on my lt. blue paint. That's even after the passenger side of the car was repainted after a tree decided it didn't like me.