Snickers: "You're Not You When You're Hungry"

In 2010, Snickers was a candy bar losing ground in a snack aisle obsessing over health and energy. Then BBDO New York landed on a single human truth so obvious it had been hiding in plain sight, and built a campaign around it. The first spots had Betty White getting tackled in a backyard football game. Fourteen years later, that same platform is still running in dozens of countries, with local celebrities and local jokes, all hanging off one idea that refused to age.

For founders and operators, this case sharpens the hardest discipline in marketing: finding the one thing about your customer that is universal, simple, and actually tied to what your product does, then having the nerve to protect it instead of chasing novelty. The setup is here. What made it work, and why it kept working, is the part worth opening the app for.