This contribution is concerned with the business value of large amounts of data generated by RFID data collection infrastructures. We present the case example of a department store that implemented RFID in its menswear department to seamlessly track thousands of items on their way from the distribution centre to the point of sale. The recorded trace data allow for a number of quantitative analyses, which provide novel insights into in-store logistics and customer behaviour on the sales floor. We provide a detailed overview of the underlying raw data, the deployed mechanisms for data filtering and aggregation, and the analysis procedures for generating businessrelevant information. Our case study findings indicate that RFID poses an untapped opportunity for retail companies to improve category management, store layout design, inventory control, and process execution.