In Japan, coins are good. Of course, EVERYTHING comes out to even numbers more--more-or-less--and consumption tax (sales tax) is figured into the advertized prices for things. A 230 Yen _thing_ costs you 230 Yen at the counter. Coins only for denominations below 1000 Yen, too. (~$10)

Of course, we couldn't do anything rational like that. Fuck, we can't even get a dollar coin to stick.