In the interim, here are a few other really small changes that are easy to incorporate into your life to conserve water:
1) When you run the tap waiting for hot water to come out, collect it in water cans for your houseplants or for the garden. Same with any water you allow to run out the tap to warm up before you take a shower.
2) Start taking shorter showers and install a water-saving shower head. Skimming a minute or two off your total can save over 2500 litres of water a month per person. My father used to take ''navy showers'' from years of working as a lumberjack in wooded areas where obtaining usable water involved lotsa lugging. Not wasting water had become second nature to him. Read more about navy showers here.
3) Only run your washing machine or dishwasher when they are full (or when doing laundry, match the water level to the size of the load).
4) If washing dishes by hand, don't let the rinse water run. If you have two sinks, use one to wash and fill the other with rinse water. Do the same when rinsing produce -- rinse it in the sink or in a bowl, rather than running the water (and use the water from the rinsed produce for your houseplants).
5) Keep a pitcher of water in the fridge rather than letting water run to get it cold enough for a drink.
6) Use aerators on all of your faucets.
7) Use a low-flow toilet, or fill a jar with water and put it in the tank. Consider adhering to the following: If it's yellow, let it mellow; if it's brown, flush it down.
8) Cook food in as little water as possible. To enable this, use proper-sized pots and pans. Not only does this save water, but it minimizes the loss of nutrients during the cooking process. Save the water you use in a container and throw it in your freezer to use later to make soup (or to boil whole grains or rice).
9) Water your vegetable garden in the morning to minimize evaporation from heat. Use mulch to retain moisture in the soil.