TechCrunch writes, Editor’s Note: Brenden Mulligan is an entrepreneur and product designer who created Onesheet, Webbygram, TipList, ArtistData, MorningPics, and PhotoPile. You can find him on Twitter at @mulligan. QR codes are everywhere. Frustratingly everywhere in my opinion. Countless companies put them on marketing materials, but not a single person I know actually scans them. I’m friends with lots of smartphone owners, and I’ve literally never, ever seen someone pull out their phone and scan a QR code. There are even a handful of startups that consider QR codes part of their core offering to...