Sometimes prepping can be less cash if you outthink the groceries. I was buying a load of canned goods (yes everyone stores some) to add to my storage inventory; but I, like everyone else don't have unlisted shelving. So I have to stack cases of canned goods, but I don't want to be buried under a load of loose cans!
This is a free option to stabilize stacked cases of cans:
The case bottoms are scrap to the grocéry store, and by consolidating a few cans; you can find enough emptie bottoms to cover the cases being purchased! Adding a top cover to each case, increases the stability to allow safe stacking. A spare corner can be used to store a significant quantity of extra cans using this method!
Another thing to consider:
Turning the can labels out before stacking, will allow a quick sight inventory. In a floorspace where 3 cases will sit next to one another, about 600 cans can be safely stored, for about $300. If they are stacked two cases deep, a written inventory is needed; and I would leave the list in place on the front of the stack!
Prepping does Not have to be expensive, if you are careful. This is obviously not the only prep needed, but it is an easy step; that will increase survival success probability!
So carefully continue to store what you can afford to purchase, while it is still available; and remember to bless someone less fortunate!