On my electric bill is a bar graph that shows each months usage for a year. For almost a year ago last June I had my one son and his girlfriend lose their place due to a fire. They lived with me for almost a year. I had three months in the summer when the rates are higher (between 2 and 7 pm they charge more during the summer). I had to take in my other son and his family last Sept and the rates skyrocketed. So I sat down with the kids and tried to explain that when they couldn't reach the switch, that was one thing, keeping it on for them was easier than running to the bathroom each time one of them had to go, but now they can reach it so they had to start teaching themselves that turning off a light needs to come natural. I showed them how they cost me more than when four other people lived here with me, and seventy percent more with them, one extra person shouldn't cost that much more, versus living here alone. Actually seeing it and showing them the fifty dollar line versus the hundred and twenty dollar line and asking them what would you do if you had that seventy dollars to spend on something else. It worked pretty good advising them that eventually it'll just become natural and you won't be giving your money away to the electric company, they've actually been stopping themselves and going back in to turn off the light. lol.