Perusing my mom's vanity is how I first discovered Bond No. 9, a luxury fragrance brand based in New York City. According to its site, Bond No. 9 is the first New York perfumery to be led by a woman.

However, there are also a growing number of examples such as Bond No. 9 where a marketer is using QR codes as the primary channel for sales. In most cases, these are brands that are focused on ...