Grab a soda and go: Convenience stores get more convenient

SAN FRANCISCO (AP) — Get ready to say good riddance to the checkout line.

A year after Amazon opened its first cashier-less store, startups and retailers are racing to get similar technology in stores throughout the world, letting shoppers buy groceries without waiting in line.

If they work, cashier-less stores will not only save time but maybe money too. From cameras and sensors, the stores will know when shoppers pick up a product and put it down, and can send them a discount to tempt them to buy it. Merchants will receive more insights into how people shop. They can create more space for merchandise, better track when shelves need replenishing and draw more business from the hordes of customers who detest long lines.