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 ...

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 ...