I love this idea! Now I’m looking at everything that is plugged in. Heck, I’d settle for the kids just remembering to turn the lights off.
When i had just 2 kids left at home, I offered them each 1/2 the savings from the previous months bill if they’d help me get it down. The teens turned off lights very well and we saved about $30 in a month. (note: only did this one month)