I have a feeling I'm going to be a hard- when it comes to that type of stuff as a parent.Wait until it's your kid, and you're the one expected to clean up after him.
My kids are even worse, as they know the cleaning lady will pick up after them.
Hubby keeps telling me to not let her clean their rooms. The problem is, I can't bear paying $130 (or $65 every other week) for her to leave two rooms a disaster zone.
On the plus side, they will be moving out soon enough, at which point we are promptly downsizing to a bungalow half the size of this place. That way, if they want to move back, they can live in the basement.
And don't get too excited. Some kids don't leave the nest when most do.

Actually, I think my dad would be okay with me living here until I'm 30 because he wants rent.