fuz said:This gets rid of 80-90% of the waterspots I get in a single pass.
P21S Paintwork Cleansing Lotion
It will eat off any wax on the car, so be prepared to re-wax after you use it. Combinded with claying, this is the normal way I prepare my cars for waxing about 2-3 times a year. The Cleasing Lotion leaves a very slick surface that looks and feels better than any of the 3M and Meguiars stuff I've used, and is much easier to apply and remove, not to mention I get better results.
fuz said:If you let it dry long enough, yah it's a bit difficult to remove, but if you just cover one panel or a quarter of your hood, it's no problem.
It should go without saying that you don't use this in the sun or on a hot surface.