[vancitymike]

This stuff works really well - (at least for me) I had a really stubborn area that was messed up from a clay mitt that went bad (basically when I used the mitt, the rubber from the mitt rubbed off and STUCK harder than anything that's ever been stuck to a car, I think the mitt was too old) I tried everything, goo gone, alcohol, and rubbing too hard... only the alcohol kind of worked...
the 3M stuff worked almost instantly. Very happy with the $15 spent.