Showerheads. You don't have to give up a luxe shower experience to save water. Feel virtuous when lathering up with a WaterSense-certified shower head. WaterSense understands that no one wants a wimpy shower spray, so all their approved fixtures tout a "satisfactory shower that is equal to or better than conventional showerheads on the market" while using just 2 gallons of water per minute.Showers typically use less water than baths, as long as they're kept brief. A timer can help you keep an eye on how long you've been lathering up.