Alex- Lol- the main issue isn't dusting, IMO, it's that his floor is carpeted and he prolly hasn't vaccuumed the whole thing in ages because it's covered in clutter. He's not living in filth, just a lot of clutter everywhere, but I'm pretty much convinced that if he actually took the time to completely clean his room, top-to-bottom, he'd have less problems with the asthma/allergies.
Ozy- English or western saddle?