Sam's Club is rolling out new scanning technology, including in all Maryland stores, that lets shoppers skip the checkout lanes.
Consumers can use the retailer's free Scan & Go mobile app on their smartphones and scan merchandise as they shop, pay from their phones, then show a digital receipt on the way out.
The app also allows users to track spending as they shop.
The feature is being introduced in time for holiday shopping but will be a permanent fixture.
Here's how it works: Android and iPhone users download the app, which includes a digital version of their membership card. While in stores, shoppers scan the UPC codes on items in their cart.
Wal-Mart Supercenter shelves sit stocked in Chicago.