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makes me wonder maybe if NFC/RFID strips were cheap enough you could have all the items tagged in the house and your phone could tell you what you have.. but probably causes e-waste though

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The other problem is that just an equivalent barcode but NFC product tag isn't going to tell you that you're down to half a stick of butter, it'll just say you have butter. And that's assuming you keep the packaging.

Anything you've prepared at home will also not be tracked by such a system.

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