I've seen all the creative ways of using them in ads or whatever. I can see maybe if you see a product that has one and wanted to check it out later, then you scan it and save it for later. But for the last 5 years, whenever I wanted to checkout a product later, I just took a picture of it and looked it up later.
What am I missing? Do consumers actually use these things regularly or are they just something that Fast Company and Inc magazine likes to write about?