They clutter up pockets and fill up purses, yet can never be found when you need to get a refund.
Now experts predict the paper receipt has almost reached the end of the roll - and will soon be replaced by emails.
Major retailers including Tesco are looking into setting up a paperless receipts system, similar to one already used by technology giant Apple in its stores.
Under the proposals, shoppers would have their purchase confirmations emailed to them instead of printed.
Former Tesco chief executive Lord MacLaurin, who has invested in a firm called Paperless Receipts, said: "Why, when most transactions are recorded digitally, are retailers still printing on paper?