companies currently use RFID to track shipments from supplier to distribution center to store. other potential uses include help with monitoring product expiration dates and acting quickly on product recalla. wal-mart also anticipates faster returns and warranty processing using RFID. this technology will further assist wal-mart managers in their efforts to ensure that their stores have just the right type of inventory, in just the right amount, in just the right place. RFID is expensive: Best buy, for example, has spent millions researching how to integrate RFID