For anyone who has never experienced water restrictions, it can be hard to imagine what it's like.
I lived in a mainland Australian state during a period of severe water restrictions - we were up to Level 6. It was due to a combination of infrastructure not keeping up with population growth and non-existant rainfall in our catchment areas, even though we got the odd rainstorm in the city. Mains pressure had been reduced, washing cars and any sort of external water use was banned except bucket watering. 4 minute showers. We'd put buckets in the shower to collect water for the garden, no flushing except for #2's, wash up in bowls to save the water for the garden. It was tough. Even now the sight of a tap running for no purpose* gives me the horrors.
My house at the time had a double sink - we used smaller bowls to save water, and rinsed quickly in the second bowl.
During this time my ex and I built an investment property - by law we were required to plumb for town water, water tanks and recycled water, and install tanks on the property. The tank and recyc (when it came on line, very controversial at the time) were to be used for laundry, toilets etc.
At the time I also installed a water tank at home. It made a difference - even drought-tolerant plants need a drink occasionally.
*During this time, I watched a US produced 'true life' haunting show - where they dramatise events of a documented haunting, usually they're pretty chilling. In this one show, a woman went into the bathroom to brush her teeth, turned the tap on full blast before she'd even loaded her toothbrush, and wandered around the bathroom aimlessly while the water ran. I was screaming at the TV - 'Turn off the darned water!' It scared me more than the ghostly activity did...