(PHYS.ORG) — It was a chaotic, late-night scramble to buy baby food with a screaming toddler in the backseat that gave Robert Ilijason the idea to open Sweden's first unmanned convenience store.
Home alone with his hungry son, Ilijason had dropped the last baby food jar on the floor, and had to drive 20 minutes from the small town of Viken in southern Sweden to find a supermarket that was open.
Now the 39-year-old IT specialist runs a 24-hour shop with no cashier.
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Customers simply use their cellphones to unlock the door with a swipe of the finger and scan their purchases. All they need to do is to register for the service and download an app. They get charged for their purchases in a monthly invoice.