Every guide tagged money, for a trip to South Korea.
What a trip to South Korea actually costs: where the money goes on beds, food and transport, the free half of Seoul, the cheap wins nobody tells you about, and how to travel well without spending much.
What a T-money card is, where to buy one, how to top it up, what it works on beyond the subway, and how to get your deposit and balance back before you fly home.
Why insurance matters in a country with excellent hospitals and no free care for visitors: the medical limits to look for, the hiking and ski clauses, and what a claim really involves.