Osh Kosh

Hey Guys, I know the Soarer's have issues with the headlights turning yellow.. and so does the none quad-light Starlet GT. (of which i own) I was wondering what you guys use to clean the head lights? I have been told a Cut & Polish does the trick.. so i tried that but its alot of work of which didnt last very long.. i was wondering if there was a more permanent solution you guys use on your Soarers? Cheers