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- Know when you're about to put groceries in so it makes the fridge colder so the added heat doesn't make things go bad.
- Know when you don't use it and let it get a tiny bit warmer to save a teeny bit of power. (The vast majority of power is cooling new items, not keeping things cold though.)
- Tell you where things are?
- Ummm... Maybe give you an optimized layout of how to store things?
- Be an attack vector on your home's wifi
- Wait, no, uh,
- Push notifications
- Do you not have phones?