Sounds like you need some folder or accordion file to store that kind of thing in and your own space that he's not to venture into, or at least not muck about with. Though it sounds like space is at a premium if that young woman is woken up by someone in the kitchen... :/
Yeah, that it is. My room's not too bad. It's when we get things like "I just bought some nice new sponges that should make it easier to get the grime off, do you know where they are?" And the reply is "Oh they were really dirty and greasy so I threw them out and bought these new cheap ones instead." He just doesn't think that there might be such a thing as more expensive sponges that one keeps and washes.
Hail to the Lord of Death and Destruction! CATNIP FOR THE CAT GOD! YARN FOR THE YARN THRONE! MILK FOR THE MILK BOWL!