Barcodes and QR codes are very useful for invenory management, and simply avoiding mistakes when entering data. They are also a great way to share things quickly (ala WeChat users) I think it would be great if we could add this into SS.
1. Ability to scan/accept Barcodes/QR codes - usually the easy part.
2. Ability to generate/print Barcodes/QR codes - might be trickier.