Your car uses more gas to idle for +10 seconds than it does to turn it off and back on again. conserve: turn your car off if you're in a traffic jam or stuck at a long light.
Appliances that are "off" still use energy. reduce: Unplug large appliances (fans, toasters, heaters, laptops, etc) when you're not using them.
To disinfect kitchen sponges, microwave them for 2 minutes. reuse: Use sponges instead of paper towels for cleaning.
It takes more energy to leave lights on than to turn them on and off (popular misconception). use less: Turn the light off when you leave the room.
Running the water while you brush your teeth wastes about 5 gallons of water. (2 minutes, 2.5 gallons per minute). be efficient: Turn the water off when you brush your teeth or shave.