Walmart has killed Scan & Go, a service that let customers scan and pay for items without checkout lanes, cashiers, or registers. At the same time, Amazon is doubling down on its own version of the ...

Walmart is rolling out its "Scan & Go" technology to 100 additional stores by the end of January.

Costco is following in Walmart’s footsteps to use technology to help eliminate a major customer complaint – long lines at checkout. Warehouse club chain Costco has launched a scan-and-go pilot program ...