Try a short shower instead of a bath. Taking a shower uses much less water than filling up a bathtub. In fact, a shower only uses 10 to 25 gallons of water, while a bath uses up to 70 gallons! To save even more water and energy, keep your shower under five minutes long —try timing yourself next time you hop in!
Learn more: http://www.epa.gov/greenhomes/ConserveWater.htm
More tips: http://www.epa.gov/earthday/actonclimate/