Updated: May 2, 2018
Only flush the toilet when necessary. Let the yellow mellow at home, work, school, gym, shops, etc.
Take very short stop-start showers. Wet your body, turn off the tap, soap, then rinse quickly.
Collect your shower, bath and basin water and re-use it to flush your toilet.
Wait for a full load before running washing machines and dishwashers. The rinse water from some washing machines can be re-used for the next wash cycle.
Use a cup instead of running taps in the bathroom or kitchen when brushing teeth, shaving, drinking, etc.
Defrost foods in the fridge or naturally, rather than placing it under running water.