It's so weird... I go to the bank, I get cash, I buy stuff. I use my credit card, I buy stuff. I send checks to pay bills. All with this worthless fiat currency that you rant about. Remind me, what's wrong here? The fact that what it can buy tomorrow may be different from what it can buy today? If you can point me to ANYTHING whose worth hasn't changed over time, I'd love to see it.
No, no, the thing is if we still had the gold standard, then you could withdraw all your money in gold (when the nuclear/zombie apocalypse happens) and it would have absolute value in gold when you went to buy some food and ammunition because it's gold.
See? By definition, gold is gold, whereas fiat currency is just paper. You will always be able to use gold to, um, make jewellery and high quality electrical connectors and stuff.