Can you give an Essay on how to conserve water?

Simple things like:

Using a cup of water to clean your toothbrush, instead of rinsing under a running tap.

Placing a house brick in the toilet cistern to reduce the amount of water used for each flush.

Washing up in a bowl instead of a sink uses less water.

Wash the car with a bucket instead of a hose.

Take showers instead of a bath.

Only use the washing machine when you have a full load. (same goes for the dishwasher if you have one !)

Install a water-butt to collect rainwater for use on the garden.

These are just a few I thought of in about five minutes.