Does Google "partner" with each store? I know Ebay Now does not. They get inventory feeds via a variety of methods but ultimately just make a regular purchase a

Does Google "partner" with each store? I know Ebay Now does not. They get inventory feeds via a variety of methods but ultimately just make a regular purchase at the store and then deliver it to you. Ebay Now's tip thing really screws it up. You're not sure if you're really supposed to tip or not and how much. Then you feel awkward almost no matter what when you meet the courier.