Everyone’s probably heard of Energy Star: a program that certifies energy-saving appliances, lighting, and other household devices. well, if you want to know you’re choosing fixtures that save water, look for a WaterSense sticker (epa.gov/waterSense). Faucets, showerheads, and toilets get to use this label if they meet WaterSense’s strict standards for efficiency and conservation. My first choice would be a high-efficiency 3-liter, one-button-flush toilet. Water-saving duel-flush toilets are also good as long as you use them properly (small button for small jobs, big button for big business).