In huge metropolises, like New York City and Tokyo, online grocery shopping is huge and anyone who's ever shopped for their groceries online knows that getting precisely what you want is more unlikely than likely. The solution? Well, according to Shortlist, Home Plus (Tesco) decided to expand their digital sales by installing virtual grocery shelves in subway stations in South Korea. The 2D displays feature products, which consumers can order by capturing the QR codes next to each product. Their online shopping lists are then updated and the products are delivered ASAP. What will they think of next?!