I think the best currency is the Japanese Yen: * 1 yen, 5 yen, 10 yen, 100 yen and 500 yen for coins * 1000 yen, 5000 yen and 10000 yen for bills That would

I think the best currency is the Japanese Yen: * 1 yen, 5 yen, 10 yen, 100 yen and 500 yen for coins * 1000 yen, 5000 yen and 10000 yen for bills That would equate for USD or EUR to: * 1c, 5c, 10c, 1 and 5 for coins * 10, 50 and 100 bills Additionally, the great thing is that between yellow and white coins, coins with or without a hole, you never mistake a coin for an other. I'm currently living in France, and there are just too many coins. All the 2 or 20 should go away.