In a bid to become the largest supermarket in South Korea, retail brand Tesco has found a clever way to expand without having to open any new stores. Like the rest of us, many Korean people are time-pressed and too tired to shop after a long day at work. They are also one of the largest markets for smartphone technology. So Tesco decided to create a store that uses mobile commerce and that was also convenient for these busy commuters. The supermarket has created billboards of its products on subway walls that look just like aisles in one of its stores. Next to each product photograph is a QR code, which commuters can scan on their mobile phone. Once scanned, the item is added to a virtual shopping basket on their phone. These goods can then be purchased on the phone, and can be ordered for delivery later that same day. Tesco has carefully considered the needs and lifestyle of their market and come up with a solution that is genuinely helpful to customers. We expect to see more retail brands use this combination of mobile commerce and real-world shopping to create convenience for busy consumers.