Somebody referred to washing planes before, as being a negative thing. You'll find that whatever road you take, be it Instructing, Charter, flying for a Cotton cocky, you'll be looked upon much more favourably if you are enthusiastic about such a task. It's character building, gives you a sense of pride, and teaches you to look after your aircraft. All good stuff, which cannot hurt a young Gen Y'er. Don't be scared to do a bit of hard yakka.