We aren't quite as good as you Deb, but we have a small rainwater tank which we water the garden with. We have mainly planted natives & grasses so very little watering required after an initial 3wk settling period (even then watered nightly by watering can from rainwater tank) plus we have mulched all the garden beds.

We also use the half flush on the toilets, plus I filled an old 250ml bottle & sealed it & popped it into the top tank of the toilet so it displaces some water & doesn't use as much to fill it.

Wash dishes once a day & use kettle to boil water ~ our hot water takes forever to heat up to hot enough to wash dishes, so boiling the kettle means it is ready instantly almost.