This is pretty smart: In Sacramento, Ca the utilities district has been working on a little experiment. They're sending customers bills with happy faces and frowns. Happy faces mean you're conserving more electricity than your neighbors are. Frowns mean you're conserving less.
Because, seriously, what is a greater motivator than envy (or guilt)?
Read the whole article and let us know what you think? Do you think this sort of behavior modification technique is useful or just annoying?
image via NYTimes.com