I would never tape the car, too long of a process. I do not know waht the professional detailers use, but I use precision to apply the wax, if I ever get wax on vinvyl or somewhere it shouldn't be, I just use a MF towel or a q-tip comes right off if you pay attention to it, and take it off immediately.
Also, you posted a topic very similar to this one here. http://autopia-carport.com/forums/showthread.php?threadid=13266 Please avoid double posting threads, combine topics of the same nature into a single thread. This saves disc space on the server and keeps the forum from getting cluttered up with multiple theads. Thanks.
When I do the full detail on the Maxima, I am going to tape the washer nozzles to prevent wax and other stuff from getting in them. I am also going to tape the trim since I will be polishing with Zaino Glass polish.