19. Free Change For Everyone

In the world of vending machine economics, there exists a guerrilla tactic for passive income that would make even the most stoic economist chuckle: the paper towel blockade. This method, requiring little more than a piece of wadded-up paper towel and a modicum of stealth, transforms the humble change return slot into a makeshift piggy bank.

It’s a low-tech hack in a high-tech world, a testament to human ingenuity and perhaps a slight to ethical standards. While undeniably clever, this venture into vending machine arbitrage skirts the line between creative resourcefulness and questionable conduct. After all, in the economy of coin returns, one person’s gain is technically another’s forgotten change.