"The store uses the company’s Just Walk Out technology, which allows customers to pick items off shelves and take them out of the store without having to stop and pay a cashier. Billing is handled automatically, but requires customers to scan their Amazon app to enter."<p>Would like to try this for myself to see how efficient the process actually is.<p>Certainly seems like it could speed things up, which works for a place like London where everyone is in their own little bubble at a million miles per hour.