...and another thing. What's the deal with paper receipts?
I'm not a complete eco-mentalist, but I try to limit consumption of unnecessary things. What is the point of printing a paper receipt for every transaction in a supermarket etc? Particularly if I'm using my loyal customer card. If there's a warranty claim, or a suspicion of shoplifting, you've got an electronic record of what went through the register, and I have a record of what went through my credit card.
It's the year 2012. Why are we still wasting paper on receipts?
Some people might enjoy the peace of mind from re-checking the numbers at the register, so OK, make the functionality available if someone actually asks for it. But I cannot see any other good reason for it.
In fact, here's a freebie for Estonian and EU politicians: run on a promise of enhancing data retention & transparency, by requiring that every store chain that gives out loyal customer cards must also have a Web interface where you log in with your ID card and see a complete record of what the company knows about you - including your purchase history. I'm sure SEB would absolutely love to integrate that kind of data into their spending diary app. Hell, they'll probably co-finance its development.