Coinciding with the launch of its store technology testing ground, the Sam’s Club Now store in Dallas, Walmart is rolling out its latest innovative investment, a “check out with me” option at all U.S.

Walmart has launched new applications for the iPhone and iPad designed to give its customers tools to plan their weekly shopping trips as well as a new way to access Walmart both in-store and online.

A reader suggests online grocery shopping with delivery is an efficient alternative to in-store shopping. The reader also noted that personal shoppers filling online orders contribute to crowded store ...