9. Your QR shall not be monochrome and boring. There are far too many companies creating attractive, unique codes to NOT have something done that's eye-catching. And if you can't afford to hire somebody to make one, then there are plenty of resources online to DIY and at least get away from the standard black & white versions. Sure, they still have to be functional but guess what? People are attracted to colorful, interesting objects – take advantage of that & get creative!