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If you don't have one of those newfangled dual-flush or low-flush toilets, this one-minute maneuver will save 16 percent on your water bill and 7,500 gallons every year. I've heard a brick-or even a soda bottle filled with pennies-does the trick, as well. It's time to prod my husband again into getting this done; this has been on his to-do list for only the past two years. Learn the toilet tank trick courtesy of this video at VideoJug.com.
Difficulty level: Easy
