I agree. But I think a more appropiate and rewarding challenge would be not showering or doing laundry for a month. How often do you wake up and say "I don't want to put pants on today?" If you're anything like me this doesn't happen very often. On the other hand I often wake up and think: I'd prefer a half hour of sleep to a shower, or I'd prefer wearing yesterday's clothes to doing a laundry. There also could be no legal issuses with this.