You've probably heard about this, but check out Zimbabwe's inflation rate. Ever seen a $100,000,000,000 bill before?
If that ever happens here, my advice is to avoid cash money like the plague... It will quickly become worthless in your hands, like gold that turns into dirt overnight. If someone pays you in cash, go buy some canned food (or toilet paper or socks, etc.) with it *right then and there*.
The picture of the guy carrying two armfuls of money to pay for dinner is just crazy.