Tesco have been trialling a virtual store in Korea which are an interesting reflection on how to fill potential time gaps in the customer's day and provide something closer to the experience of being in a supermarket and seeing the products you are buying. Posters of stocked shelves are displayed and you scan the item you want with your smartphone, it is added to your order and delivered to your home. They have trialled them in subway stations with the suggestion that the order is waiting for you at home.