In any case, unless tracking gets super easy, with digital receipts saved directly onto our mobile devices and standardized for processing, I just couldn’t be bothered to break down paper receipts.
That BTW makes me wonder why have we not seen e-receipts standardized yet. We can pay wirelessly with devices, so why not save some more meta data about the transaction, including the receipt itself? Seems like a low hanging fruit, also saving tons of paper.