The dollar can be used once a day. It has to be a dollar’s worth of a product, service or use of a product. For example, A dollar’s worth of a $100 TV would be the life of the TV divided by 100. You would get to enjoy the TV for that amount of time. The product or service is instant and doesn’t require any preparation. It just appears and disappears. Or you could have a TV permanently that is worth one dollar.
I suppose it would be a cheat to buy money, eg through stocks, shares, or exchange rates, right?
No, I am gonna go with the rules that I have written to be fair, so this is perfectly fine. Be as creative as you want. You could even buy a lottery ticket every day but that never works out so yeah. Buy a one dollar stock. No exchange rate. It’s the dollar of whatever country you are in.
A Japanese dollar?
Yen