I was thinking of supply chain management technology. It's being meshed with
wifi and barcodes. How long a product is in your house can also be measured, if yer into those kinds of products. There's also a
backlash to RFID tech by groups of supply chain managers now.
New possibilities - RFID offers a unique combination of control and flexibility. Unprecedented levels of accuracy allow manufacturers and retailers to operate and collaborate more effectively, so both can be more responsive to the needs of their customers - the end result is greatly improved on-shelf availability.
http://rfid.bemrosebooth.com/retail_supply_chain.php