Rob Fitzpatrick, who runs The Startup Toolkit, tells a story about how his father laid an entrepreneurial foundation by making him manage a vending machine. Fitzpatrick talks about how managing a vending machine taught him about costs and profits, keeping stock and working around customers’ preferences. It’s all perfectly summed-up at the end: “when I stumbled into the startup world two decades later, the dots began to connect,” says Fitzpatrick. “Cashflow wasn’t a new concept. Inventory tradeoffs made a bit of sense.”

Check out Fitzpatrick’s whole story over at The Startup Toolkit.