There’s PLENTY you can do, starting with accumulating things you use at a regular interval over time.
Deoderant
Toothpaste
Motor Oil
Oil Filters
etc...
I change my oil on practically a monthly basis. I thoroughly plan on accumulating at least 10 changes worth.
And save your used oil. Among other things it makes great chainsaw “bar and chain” lube.
Forgive me for not being clear. I meant there wasn’t much we could do to prevent the crash. I agree that there’s a lot we can do to prepare for it and I have. I think I can do more though.