Spare wealth? What’s that?
After you have all the food, guns, ammo etc that you need. Do you have the rest in cash in your mattress? CDs in a bank? Gold coins? etc.
Spare wealth? What’s that?
Regarding spare wealth:
One of the few items you’ll want to barter for is cooking oil. Otherwise you have to parboil everything, cook in animal fat which you have to maintain a constant supply of, or grow pretty large sunflower crops and store the oil without contaminating it each winter.
Some how you will be compelled to produce small surpluses for trade to buy that oil.
For things like that, a medium of exchange will be what you’ll want some shiny metal stored.