Turn off taps while brushing your teeth, soaping clothes and scrubbing vessels.
Fixing leaking taps doesn't take much, but it can save a significant amount of water.
Using a bucket instead of a shower to bathe can reduce your water consumption by 80%.
Energy star rated dishwashers and washing machines use less water. Try and get them for your home.
Install faucet aerators, low-flo showerheads and toilets with smaller flush tanks.
Water treatment plants and rainwater harvesting systems can recycle water on a large scale. But to recycle water on your own, you can do simple things like using the water in which vegetables have been washed to water plants.