Abstract: A customer receipt data collection robotic (RBOT) device is connected to a point-of-sale (POS) device, such as a cash register, through an available connection link, such as an available auxiliary printer port or in-line connection. The RBOT device operates autonomously to collect receipt data for transmission to a Data Center for storing and processing the collected receipt data and making the results thereof accessible online to vendors and customers. The customer receipt data are tagged with the customer's ID number by scanning a customer barcode ID or a magstripe customer ID store card. At the Data Center, useful data mining functions are performed on the collected receipt data, and the results are made available online to vendors for inventory control and/or product sales purposes, and to customers for accessing their purchase histories and/or for customer loyalty, discount and/or reward programs.