Bills Crisp as Origami
Despite Japan’s high-tech reputation, cash still rules, especially in small towns, mom-and-pop shops, and ramen joints. And yes—those notes better be neat. A crumpled bill feels like a personal insult.
Card Confusion
Major cities may accept your credit card, but don’t count on it. Even places that say they take cards occasionally “have trouble with the machine.” Always have backup yen.
The Art of the Coin Tray
Handing over money directly? Slightly awkward. Instead, look for the plastic tray at the register. Place your money there like a polite magician, and receive your change with silent gratitude.
TL;DR
Keep clean yen on hand. Be respectful with bills. And always carry coins—you’ll need them for vending machines, temples, and that one snack you didn’t know you needed.