Subway, currency, etiquette, and language survival — the things that save the trip, with specifics.
Leave something on a Seoul train and it does not vanish. It enters a filing system with four addresses, weekday hours, and a clock that runs about a week. KO: 두고 내린 것들이 가는 곳
In Seoul, an address is often a single digit at the top of a staircase. Learning to read exit numbers changes how the city opens. KO: 출구 번호로 길을 찾는 법
Above ground, Seoul locates itself by subway exit. A short field guide to the numbered doors — and how to pick the right one before you tap out. KO: 출구 번호가 곧 주소다
Korean rentals hand you a spotless flat and a one-word note: 분리수거. Here is the part nobody explains — the right bag, the food-waste stream, and the night it all goes out. KO: 숙소에서 아무도 안 알려주는 쓰레기 규칙
On a Seoul platform, the difference between an escalator and a 200-metre march is decided before you board. The maps already know which car you want — here is how to read them. KO: 지하철, 어느 칸에 탈 것인가
An empty coffee cup and no bin in sight is not neglect — it is policy. A ground-level guide to where Seoul's trash actually goes, and how to travel without carrying yours all afternoon. KO: 쓰레기통 없는 거리, 그럼 어디에 버릴까
In more Korean dining rooms the host is a touchscreen. Here is the fixed order it asks in, and the thirty seconds that keep the queue behind you calm. KO: 키오스크 앞에서 당황하지 않는 법
The reader by the back door is the whole game. Tap off, and Seoul's transit system treats your bus, subway and next bus as one fare instead of three. KO: 버스에서 내릴 때 카드를 찍는 이유
A Korean address stops at the door. The rest is vertical — a café on three, a record bar underground — and the sign column outside tells you where to press. KO: 층마다 다른 가게, 한국 건물 읽기
A laminated A4 sheet, no photos, no English, and a server already halfway to the next table. Here is how to read the columns before you have to order. KO: 한국 식당 메뉴 빠르게 읽는 법