Claybar, Claybar, how do I love thee
Let me count the ways...
Bug guts
Tar
Fly Poop
Sap
Overspray
Paint chips... well not quite, but some of the little nits I sure thought were paint chips came off with the clay bar.
For those of you left who have not been turned on to the wonderful fabulousnessitude of a claybar... allow me to recommend you high-tail it to the nearest parts store and get one.
I spent the last four hours washing, clay-bar-ing, washing, waxing, waxing, finishing-spray-ing my wife's Suburban. Man that thing has a lot of surface area. Shoulders and wrists still hurt after 2 beers.
Clay bar works like magic, after you use it the paint is so smooth it feels like it's been waxed already. Wax then goes on easy from the first coat.
I use Zaino products which IMHO are really great... but I'm by no means an expert. Heck, until I got the BMW I thought you were supposed to use dish soap each time you washed the car. Now I'm all fancy with the multiple wash mitts and microfiber drying/detailing rags and the high-falutin' name brand wax...