I only clean when I'm hypomanic, manic, or dysphoric. I usually do it in one fell swoop!

But I agree with Jacky -- start off small. You don't have to clean everything at once. Take a couple of days to clean if you need it.

If you're the kind of person who starts something and usually doesn't finish, then I would take a whole day off just to clean. Sometimes it helps to get a momentum going and have a "f--- it. I'm just going to do it" attitude