cleansing clothsEvery minute the faucet runs, two gallons of water go down the drain; the average eight-minute shower dumps 17 gallons. To conserve, wash up with a biodegradable, rinse-free facial wipe, suggests Donna Bishop. "These remove buildup using less water, and they gently exfoliate." Or simply shave two minutes off your shower time (set a kitchen timer to keep track).
Kaia Bamboo Facial cleansing cloths, $18/30; drugstore.com.Read MoreLess