If you're running ads right now, Meta, Google, direct mail, magazine spreads, LinkedIn, doesn't matter, you're almost certainly leaving money on the table. Not 10% more. Not 50% more. Caples documented one ad outselling another by 19.5x with the same product, same media spend, same audience. The only variable was the copy. Many owners I know spend a fortune on impressions and pennies on the words. Then they wonder why the phone doesn't ring.