Each car has it's different sets of curves and turns along the car, but what are the main areas you always tape before polishing/waxing?
I only tape off trim that will get polish on it... oh, windshield wipers too. I tend not to tape off embelems
It depends how much room you've got to work with on the car...sometimes I tape a lot..sometimes very little. The windshield I cover with newspaper, over the wiper blade, under the edge of the hood.
I tape the trim but the amount depends on the vehicle. If you are polishing, especially with a rotary, I will also mask the high spots and between panels where paint burn can occour.