To slash water and electric bills in one fell swoop, bring home a more efficient showerhead. Those marked with an EPA-approved WaterSense label are designed to outperform older models and can save an average family nearly 3,000 gallons of water per year. And because there's less water pumping through the showerhead, there's less work for your water heater to do, which translates to additional savings. WaterSense labeled showerheads come in many different styles, at many different price points. Available on HomeDepot.com; $36.33.