Over the past few years, QR codes have been used in various places as replacements for website URLs or to promote products. It's always felt a little bit naff or unnecessary. Watching TV tonight, BBC Food promoted a specific recipe by using a QR code on screen. A quick scan takes you directly to the recipe you're looking for with a full list of ingredients. Now that's good use of a QR code to replace what would otherwise have been a very long-form URL.
Smart move BBC!