Rain barrels are back. Try sprucecreekrainsaver.com for one that’ll look good in your garden (54 gallons, $134.99).
Put rain sensors on your autosprinklers. Why water when it’s raining? They’re $20 to $35 at www.sprinklerwarehouse.com.
Get a faucet aerator. It limits sink output but maintains volume. Try 1.6 gallons per minute in the bathroom, 2.5 in the kitchen ($5 at hardware stores).
Take a bucket into the shower. Catch the water you run while the shower gets warm.
Do not put a brick in your tank to shrink flushes–it ruins plumbing. Drop in a gallon jug of water for the same effect.
For more tips, see h2ouse.org.