Imagine that on your walk home, every outdoor ad that you passed had a QR code that when scanned, would put the item into your shopping cart. As I stated in my post about the future of retail: The future of QR codes isn't about entering people into your sweepstakes. It's about making their lives easier.
This installation by Tesco, a market in South Korea actually puts a virtual store in unexpected places (like subway stations), and lets people shop with their phones.
Was This Effective? The move increased online sales by 133%, and made their chain the #1 online seller in Korea.