Don’t fill up the bath w hen you take a shower. Turn the tap off when you soap your body. When you have lunch or dinner, don’t fill up your glass if you are not very thirsty. When you have ice left in your cup, don't throw it in the trash, dump it on a plant.
When washing dishes by hand, don't leave the water running for rinsing. Water plants and the lawn in the evening. Take little steps each day to reduce the amount of water you use.