About The Costly Mistake Files

The Costly Mistake Files exists for one moment: the moment just before an ordinary American consumer spends serious money on a car repair, a home service, an appliance, or a warranty — and has to decide with incomplete information.

What this is

• Original visual explainers and decision tools about repair-or-replace choices, repair estimates, extended warranties, and service contracts.
• Documented sources. Our guidance follows published consumer protection material, such as the U.S. Federal Trade Commission's auto repair guidance, and we name our sources on the page.
• Clearly labeled fictional scenarios. When we walk through a sample estimate, a sample invoice, or a customer's dilemma, it is labeled fictional — invented by us to teach the decision, never presented as a real event.
• Three connected properties: video episodes on YouTube, this website (guides and tools), and discussion companions on The Costly Mistake Notebook.

What this is not

• Not a repair service. We do not fix cars, appliances, or homes, and we do not pretend to have inspected, repaired, or tested anything.
• No fake credentials, no invented experience, no fabricated testimonials or savings claims. If a number appears here, it is either your own input to a tool or a clearly labeled illustrative scenario.
• Not professional advice. Content is educational only. Safety-critical repairs — brakes, steering, gas lines, electrical systems — belong with qualified professionals, and nothing here should delay them.
• No guaranteed savings. Better questions lead to better decisions; anyone who promises you a specific dollar saving is selling something.