Passport? Good.

Countries

Now the part nobody tells you.

Practical answers to the questions guidebooks skip. Pick a country.

Pedestrians crossing Shibuya Scramble in Tokyo at dusk

Japan

Cash still matters, and silence is a form of politeness.

The Pudong skyline across the river from the Bund in Shanghai

China

A phone is the wallet, the ticket and the door — cash is the awkward option.

View from a tuk-tuk on a Bangkok street

Thailand

QR codes everywhere, and a metered taxi is a negotiation.

A busy street in the Old Quarter of Hanoi

Vietnam

Cash moves most of the country, and the notes have a lot of zeros.

Hanok rooftops along a sloping lane in Bukchon, Seoul

South Korea

Almost everything is card, and side dishes keep coming.

Food stalls and crowds at Shilin Night Market in Taipei

Taiwan

One card pays for the metro, the bus, and the convenience store.

Sort the practical stuff before you fly.

eSIMs, rail passes, and airport transfers — the things worth booking before you land.