During those five-hour meetings, he talked to local staff members, listening to their issues, even small ones like a broken air-conditioner and customer queues.
One is currently being trialled in West Sussex Sainsbury's stores, with the aim of cutting customer queuing times.
Customers queue, fill their jars and pay, a process more commonly seen at petrol stations.
At his carwash customers queue to pay 46 pesos ($3.60) for their cars to gleam in the ever-present sun.
All around us is history," he said, pointing at the framed memories as customers queue to pay for their tea.
At Santa María, a shop across the street from one of Madrid's main hospitals, customers queue to buy fertilisers, potting earth and imported Dutch cannabis seeds.
T-Mobile has consistently been left out of launch day hype surrounding the release of Apple's iPhone, with the carrier relegated to watching from the sidelines as AT&T, Sprint and Verizon locations saw customers queue for the iPhone 5 back in September, so it's probably very happy to see lines form with this launch.
Nor do the images of customers queuing to cancel their policies as far away as Singapore.
Head to New York and you'll see customers queuing at Penn Station's Pret a Manger.
Customers queued three-deep at the bar, a little boy walking through at belly height.
H&M launched its "M by Madonna" line in March, creating hysteria as customers queued for hours to buy the clothes.
