Tesco has had that in the UK for a while.[0] I'm unaware of anyone who's ever actually used it though. [0] http://www.tesco.com/scan-as-you-shop/ http://www.te

Tesco has had that in the UK for a while.[0] I'm unaware of anyone who's ever actually used it though. [0] http://www.tesco.com/scan-as-you-shop/ http://www.tesco.com/scan-as-you-shop/