From Columbia Magazine:
What do you do with those crumpled-up receipts from the grocery store or gas pump? Or the confirmations of online purchases filling your inbox? Rather than tossing this so-called trash into the recycling bin or letting it fade into the digital abyss, you can now sell the records of your retail transactions for a small profit.
CoinOut, a cash-back app founded by Jeffrey Witten ’10CC, ’15BUS, ’15LAW, asks you to photograph and upload up to seven receipts a day to its platform, and in return users earn anywhere from one to fifty cents per submission.