if you really want something good, look into xzilon. its supposedly an airplane wax.
its a complete liquid, alot of which is alcohol. you can only do like a 2x2 area of your vehicle at a time, and have to hand buff it off quickly or else itll eat into and perminantly stain your paint. but anyways, when used correctly, you can drive all through lovebug season, and get the front end of your brand new white benz black from love bugs, and after a few months even (lovebugs contain an acid in their bodies, and when you smack into them with your front end, they blow up, and when left on the acid eats into the clear leaving a hole) all you have to do is take a waterhose (or a soft wet towel) and they wash right off. good stuff.
but i believe its upwards of $100 for a 7oz can