You should try Snap Seal. It is actually a tar and bug remover with wax. It is very easy on and off. Very little effort needed. We use it on our 5'er, boat, cars, windows, wheels and even the corporate jet I fly. You can use it for a complete wax job or just spot cleanings. We think it is great! It comes in gallon jugs and all you need is a spray bottle and a couple towels. We can do our 5'er in about 3 hours and like I said it is very easy. Just spray on and wipe then in a minute (whenever it dries) or so wipe off. It also removes the black water streaks with ease! You can order it at: http://www.topoftheline.com/exdetclean.html
If you try this you will never use anything else!