The 303 is the best for spraying on after you clean your boat's interior no doubt.

A couple of cleaners we've tried with great success are the Majic Erasers, now available in 4 different forms. Simple Green,(biodegradable), and another door to door sales man product HY-Pro also biodegradable.

If you try something new just be careful of its effects and test in on out of the way spot first.