Movie Mogul
I’ve been getting free movie tickets for a while now. Fandango has an app that you can buy your tickets on and it becomes a QR code thingy, and the person at the booth just scans it and you go in. If you screenshot it and show the picture the QR code doesn’t work but if your local theater has a nervous teenager working the booth and a long line of customers, they’re not gonna make a big deal.
Instead, they’ll just assume the computer is being weird and let you in. When you get inside the theater, pull out your phone and return the tickets through the app, it will let you because it sees that its QR code was never scanned. I’ve bought movie tickets for my friends a bunch of times, and then they pay me back for spotting them. So free tickets and profit.