Tag-Share is a concept for an open standard for RFID product labelling, to allow for instant sharing and sale of owned products — books, sport equipment, boardgames, clothes, furniture, kitchen appliances, electronics, and more — on P2P sharing websites and second-hand marketplaces. The vision: bringing thousands of brands, manufacturers, P2P sharing platforms and marketplaces to agree on a product categorisation standard, to unlock frictionless product exchange, repair, and re-sale.