RFID I just bought some J Crew trousers and found a strange little tag sewn inside a nice little pocket inside of them. It advised me to cut the label and device out before washing or wearing the slacks. I googled for J Crew and RFID and found they are a case study in retail so it seems to be my first encounter with RFID. IDTechEx: Smart Label Revolution - The complete introductory report to low-cost RFID and beyond