I have washed the cars only two or three times this year - using the obligatory watering can (although before the last cruise I washed the EA at the local high pressure car wash
_).
I went to the local plumber supplier shop and got two water restricters, both restricting water flow on both our showers to 9L a minute. These screw on in between the shower arm and the shower head and cost $15 each. And now I get the family to have showers every second day and restrict the use of the bath.
I have a hose attached to the washing machine wastewater hose and use it to water the grass and plants out the back.
I don't water the garden unless things are seriously starting to die (we need plants to keep our planet alive after all) and have used water saving crystals on the garden to help absorb the rain water (instead of the water running off and into the stormwater drains). I am looking into large containers for storing rainwater as well (my mum uses them to collect the water and dad put taps on the bottom of them to access the water).
Any plants that do not survive, I pull them up and replace them with more drought tolerant plants. Don't be fooled into thinking this means Australian natives as some are fussier than introduced species!
I also compost anything in our household that is biodegradable and use the composted materials on the garden along with mulches etc to stop evaporation.