Unplugging chargers that aren't in use or appliances that aren't in use is a great way to conserve energy. You can turn this into a game by going on a hunt with you children (supervised, of course) for devices that are plugged in when they don't need to be. A phone charger without a phone on the end of it is a great example of an energy vulture that could be unplugged. This is a hands-on activity that teaches children the important of not leaving unused devices plugged in (or lights on when they're not needed).