Shopping carts in Korea aren’t free…to wander the parking lot and bump into cars. Instead, shoppers deposit 100W into the cart for its release. Return the cart and the coin is yours again. This low-tech solution makes for a neat and orderly borrowing and returning of shopping carts. The high-tech wheel design locks into the ramp-like escalator of multi-level stores, this prevents sliding.


American shopping cart technology can limit use within a defined perimeter, but those parking lots are still strewn with wayward carts.