Abstract: A computer-assisted shopping system includes a self-service scanning station, a multiplexing tendering station, and associated methods of serving customers at a retail establishment. One of the methods of customer service of the present invention allows a shopping establishment to offer a self-scanning shopping option to customers who are unable or unwilling to obtain a personal identification card, which is required with the prior art self-scanning shopping systems. A self-service scanning station is provided that includes a bar-code scanner, preferably permanently mounted or tethered to the self-service scanning station, a processor, optionally connected by a network to a central computer of the shopping establishment, and a printer for printing itemized receipts of items to be purchased. A customer who does not have a personal identification card may bring the purchases to the self-service shopping station, scan the purchases and obtain an itemized receipt of items to be purchased.