The Price Per Use Rule: A Simple Trick to Judge If Something Is Worth It
In a world of endless shopping options and persuasive marketing, deciding what to buy can be overwhelming. The Price Per Use (PPU) Rule is a powerful yet elegantly simple mental model designed to cut through the noise. At its core, it shifts your focus from the upfront sticker price to the long-term cost of ownership. Instead of asking "Is this expensive?", you ask a more revealing question: "How much will this item cost me each time I use it?"
