No because it made no sense...
I wax whenever I feel like it. It's a pain in the ass to do though.
Depends where I'm skiing and what time of year.
Skiing dry pow I like to get a wax as often as I can afford to, if only because the cat tracks tend to be really sticky.
Most of the year I'll do a quick wax every 4-6 ski days, although in spring when it's all slush I don't really bother as I figure good base structure is more important then anyway.