Ask HN: paperless receipts
https://news.ycombinator.com/item?id=2313583After paying up on a coffee shop yesterday, i was wondering how much paper is wasted on receipts all around the world.
I don't know if are there any solutions out there (i live in Portugal), but what i've thought of was that a service could be implemented that would setup a device at the venues that would generate a bar/qr code for the bill, which could be scanned by the customer using a mobile app.
the mobile app could even integrate with an on-line personal finance management app.
what do you think?