The decision to open a job by a major multiple these days is not based on a whim but very sound data on footfall, customer spend potential, accessibility are just a few. The supermarkets such as Tesco and Sainsbury that have Loyalty Cards know in advance of you stepping into a store roughly 60% of what you are going to buy so they stock accordingly. Retailing is quite carry that they have ‘read’ your mind before stepping foot in a store as humans are creatures of habit and very predictable.