1. Make a pan of brownies.
2. Grab a timer.
3. Give each kid a chore per room. Hopefully it's something meaningful like picking up clothes or toys, but if the room is pretty clean resort to the wet-wipe method: grab them a wipe and show them something to scrub! Doornobs, wall spots, mirrors, etc. Anything to keep 'em busy while you ACTUALLY clean.
4. Set the timer for 10 minutes per room....aaaaaaannnnnnd... GO!
5. Clean as much as you possibly can in 10 minutes and demand that the kids do the same because if you work really hard, when the timer rings, you get... BROWNIES! (really little ones)
6. Repeat 3-5 for as many rooms will hold their attention, or as many brownies as their tummies will hold. You could sub cookies or M&Ms, too.
This saved me tonight when I needed to clean house but often find that I clean one room, move on to the next, only to walk back in and find that room #1 has already been destroyed. This way the kids did NOT destroy as I cleaned AND they helped! Chocolate-y motivation never fails :)