In anticipation of not having access to water, we tried to think of all the ways that we use water each evening. My son showered early. We filled multiple water pitchers providing water for brushing teeth and drinking. We also filled each tub half-way full, thinking it would give us water for washing hands and flushing toilets. We have water stored, but I'd rather not use it for this occasion.
What we didn't anticipate was needing water to wash the dishes and wipe the counters. We scrambled during the last few minutes of water pressure after we realized that we still needed to wash our faces and take care of these other things.
It's amazing how much water we use! I can't imagine being without water and all the conveniences that it provides. It's just another good reminder to make sure you store as much water as possible.