I don't need medication, but by chance, decades ago I got a good deal on a large chest freezer - went to buy a medium sized one, none left so the manager let me have the large one rather than see me walk out of the shop. It has been great as I can buy up any deals I have seen in the marked down sections and freeze them. It is now just about full to the top (I am thinking I should empty it, do a defrost and sort out in order to get a few more things in) - it is stacked with all sorts of meat and packs of veges - I hope to get some frozen berries on offer later this week, and some ground coffee, maybe tins of fish and meat in the cupboard. It will, after all, not go to waste even if there are no supply problems - but over the last few months I have found myself going around two or even three supermarkets to find what I want. I might have to work out which buses to catch rather than using the car, as I have a bus pass - with a fixed income it can be a problem to buy petrol without going over budget.
I am hoping for the best, but a bit of prior preparation could make all the difference - if there are shortages I will at least not be adding to them.