Knowing the motivation I feel by using Wii Fit Plus on a regular basis and realizing how nice it is to compete against my previous scores, I have designed a new challenge for us.
I've written on the memo board posted on the fridge:
Days kitchen has stayed clean: _____________
Mike is a competitive soul, who also likes a good challenge, so I think this will help both of us stay motivated.
The goal is to keep the kitchen nook table and kitchen counters cleared by the end of the day (and ideally, the sink cleaned out as well).
We'll see how effective it is!