My boat has alot of white in it & I play hell keeping it looking good. I wax it every spring before putting it in the water, then is kept in my boat slip all summer, raised out of the water when not it use. My boat house is lighted so it is a heaven for bugs at night. We wipe it down often, but at the end of the summer, there is still quite a few marks that almost look like stains, both in the fiberglass and the seats that are almost impossible to remove. I know this will be the last boat I buy with much white in it! How do you keep your boats clean?