I was walking through DuPont Circle in Washinton DC last week. I stumbled upon Axis Salon. I was so intrigued by the glass storefront that I had to hang up the phone and stare. The salon front was COVERED in QR codes!!!

Storefront

Close-up of shop name:

Instructions to download: (they recommend 3GVision's i-nigma)

They should be telling consumers more about what phones are compatible, probably. There should probably be more instructions, but at least they OFFER instructions.

Scan the code … link to a Web site with a coupon.

It's pretty basic, but very effective. They must have a lot of people asking. It's certainly driving buzz – I mentioned it to a couple of people I met in DC, and they knew about it. Partial instructions available. Lack of compatibility with most phones … maybe an issue, but those who don't know about 2D codes are probably also less likely to ask. Fun.