Oh, if I did that I'd never make it back to the original room. I have to focus on one room at a time, and I'm not allowed to do things like think about how the cat litter needs cleaning while I'm in the kitchen or how the clean clothes need to be put away while I'm scrubbing out the chin's cage.

And my office is ALWAYS last. With my computer and my books in there, if I do it anytime other than last I end up getting distracted and spending far too long in there.