Written in Seoul · 5 years in · 132 answers

You can't read the signs. Ask me instead.

Every wrong guess in Korea costs money or an hour of your day. Every answer here ends with a price, a number, or a verified local shortcut.

Airport → Seoul
₩4,150
AREX all-stop, ~60 min. A curbside taxi is ₩90,000.
Instant tax refund from
₩15,000
Per receipt, paid back immediately at store counter.
Cards declined at
1 in 3
Unmanned stores and old kiosks run domestic-only networks.
Apps you actually need
4
Naver Map, Kakao T, Papago, and one prepaid payment card.

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Travel
How to Buy and Use a T-money Card in Korea (2026): The ₩2,500 Card You Need in Your First 30 Minutes

How to Buy and Use a T-money Card in Korea (2026): The ₩2,500 Card You Need in Your First 30 Minutes

The single card that runs every subway, bus, taxi and convenience store in Korea costs about ₩2,500 — but foreigners still lose money on it. Here's exactly where to buy it at the airport, how to reload it, how to get your balance back, and the three rookie traps (Cashbee mix-up, the AREX Express gate, cash-only machines) that catch first-timers, from someone who's tapped one in for five years.

Travel
Is the Discover Seoul Pass Worth It in 2026? Honest Break-Even Math (+ Which One to Buy)

Is the Discover Seoul Pass Worth It in 2026? Honest Break-Even Math (+ Which One to Buy)

I ran the real numbers on the Discover Seoul Pass — pass price versus the summed gate tickets — so you don't have to guess. You break even at roughly two big-ticket attractions, so it's a clear win for theme-park-and-tower travelers and a quiet money-loser for palace-and-cafe trips. Here's the exact break-even table, which of the 24h / 48h / 72h versions to buy, and the T-money gotcha that catches newcomers.