The T-money card is a rechargeable smart card used primarily for public transportation in South Korea. It allows users to pay for bus, subway, and even some taxi fares conveniently, eliminating the need for cash or paper tickets. The card can be topped up at various locations, including convenience stores and ticket vending machines. In addition to transportation, the T-money card can also be used for small purchases at select retailers and vending machines. This versatility makes it a popular choice for both locals and tourists, enhancing the ease of travel and daily transactions in urban areas.