It might seem awful, or geeky, or terribly domestic, but I LOVE having a clean space.  Everyone does, I think, or at least they should.  But having a cleared floor, stacked books, stuff neatly tucked in corners or squarely hung on the wall are just some of the little things that sustain my sanity.  Most especially when my husband forgets to run the dishwasher the day before I’m expecting company, so I have to do it.