>>6
Haha, I used to do this when I was a child. I would always make my half of the room smaller and in turn throw all the junk on my sister's side. When she complained, my response would always be: "Well, I have the smaller side!" It always worked. XD

But, OP, I would try this! If you can stand being surrounded by the mess, you'll be able to have your own safety zone of cleanliness!