I am not talking about buying gas as much as I am about not buying gas and not using your car as much. Stay home and don't go out everytime you get bored
but here is a good idea, all sports for kids should be cut to one practice a week and double the time and not have two prctices a week. cause then we play into the gas gods hand, and learn to buy your food on 1 trip a week not 3 or 4 trips to the grocery store. thats how you start this with smart driving.