meguiars gold class carnauba plus

Cheers:

I have been waxing My Dart with Meguiars gold class Carnauba plus since about 3 weeks after my paint job. Each time it gets easier to apply and take off. I only drive maybe 100 miles a month and have about 5 coats on it. No Rain or Mud etc...

My questions are When is enough enough? and Should I switch to something more of a spray detailer for inbetween waxes? If more coats = better then I'll keep doing it when I get the urge.

Thanks for any advice. Also does anyone like the California Car dusters?? I usually just dust off with a MicroFibre cloth and start waxing.