Prepping (i.e. making sure you have enough essential stuff stored away to tide you through a difficult time) is always a good idea. Now is a good time to start.
“Now” is an especially good time to start prepping for Day Zero. Here are some good ideas, except go light on the rice and dried beans (you need water to cook those) and buy water, not empty containers.
Successful prepping revolves around buying more of the kind of stuff you’d buy anyway, and then rotating it. Day Zero is not going to go full-on Zombie Apocalypse on us (we all hope) but the supply chain might be slow due to people having to queue for water, rather than being at work. If you also have to queue for water, and maybe go to work*, taking the time out to go to the shop will be a luxury. So shop now.
But don’t go out and buy a ton of freeze-dried Bear Grylls stuff you’ll end up never using and throwing away, just get extra stock of the tinned stuff you normally get, stick some extra chicken or mince or steaks if you can afford it in the freezer, that kind of stuff.
Remember to keep your plastic grocery bags, you’re going to need them :-/
Also, waterless hand cleaner and bleach. Paper plates might not be a bad idea either. A fellow student, back in the early nineties, kept his plate in his fridge so he only had to wash it once a week. He was just lazy, but if water’s scarce, it could work.
Start thinking about food recipes that need little water. I made this one the other night, it’s pretty damn good.
And have a Plan B. Always have a Plan B.
*Although how one can be expected to work when the toilets don’t flush is beyond me. Note that this also applies to the staff at your friendly local grocery store. Which brings us back to the point — shop now.