A few weeks ago at Cisco's San Jose headquarters, I visited the networking giant's Internet of Everything Showcase, a laboratory that develops and tests a range of Internet of Things technologies for clients. One of the projects that Shaun Kirby, Cisco Consulting Services' chief technologist, and Ben Varghese, an emerging technology consultant at the company, showed me is aimed specifically at reducing wait times for shoppers at a big-box retailer, the name of which they said they could not disclose. The approach that the retailer is testing involves mounting location beacons (the tests involve Wi-Fi tags made by Ekahau) under shopping carts and then using Cisco Wi-Fiaccess points mounted throughout the store to track their movements. This type of application has been used to improve store layout for many years.