ok..yes there is a such thing as too much wax. Once you start getting on the 3rd coat or so of wax you start to actually remove the bottoms layers. Even with a layerable wax. So really your wasting your time. You should only have to wax your car a few times a year. So if you "have" to wax it more than that well, get a new wax.
omy....how did i know you were going to jump in...??? but yeah....even if you do apply TOO MUCH of wax, it wont hurt your paint tho..??? right?