That's the worst thing about selling houses. How the heck to keep them clean! I usually try to live in as little space as possible. So if there are rooms that you don't use, give them a good cleaning and then shut the doors. On the day of a showing just give a quick "swiffer" and you're good to go. The best advice, and the hardest to follow, is to clean as you live. In other words, if you take it out - but it back; if you dirty it - clean it, etc. And do it immediately so things aren't laying around. That way you don't have to do a huge clean up each time the house is being shown. You only have to do a "ten second tidy" and you're good to go. And oh yah - get rid of as much clutter as you can.