As you start to look, you do start to find QR Codes in all manner of places. As well as junk mail, advertising, newspapers and chocolate bar wrappers, I recently found a QR Code on the back of a lorry!
Driving up the M5 I found myself behind a big lorry with a huge QR Code on the back. Taking the advice on the lorry to “scan with care” and using my iPhone in a windscreen mount, I was able to take a photograph and also use the Optiscan App to scan the code. When I later stopped at the services I checked the URL and found the QR Code belonged to a waste management company and the URL sent you to a mobile version of their website.
An interesting use of a QR Code, but was it any better than a URL or a short URL? To be honest yes, would be much easier for a passenger to scan in the code then trying to note down a complicated URL. This was in my opinion a pretty good use of a QR Code, but I did worry about people like me trying to scan them in, whilst driving.