Chores - the new HIIT

I'm trying to get back into working out so I did some ab and leg work but wasn't really feeling satisfied so I broke out my roommate's old (read: heavy) vacuum and cleaned all the carpeted rooms in the house (including the stairs).  Let me tell you, THAT is a workout.  My arms, abs, back, and butt were all worked out and I broke out into more of a sweat than I did with the ab and leg "workout".  Plus, it was productive.  A win-win!