I've thought of doing this for all the stuff kids need for school, plus our own keys etc. Rather than "IoT" tags, I'm of the opinion that we should use dirt-ch

I've thought of doing this for all the stuff kids need for school, plus our own keys etc. Rather than "IoT" tags, I'm of the opinion that we should use dirt-cheap (a few ¢ each, rather than $10+ for a full "IoT tag") RFID tags, and have a reader that can be accessed by a phone over Bluetooth (or have a few permanently installed around the house). Just need to drive the cost of the readers down.