Legendary fund manager Peter Lynch ran the Magellan Fund for 13 years, delivering astonishing annualized returns of 29.2%.

Many of his ten-baggers didn’t come from sophisticated macro models, but from observations in everyday life.
One of the most interesting cases was when he tried a Taco Bell burrito shell, noticed that its stores were packed with customers, then dug into its financial reports and heavily invested—ultimately achieving extremely high returns.
More often, ordinary investors can sense the popularity of a new product or service at consumer touchpoints earlier than Wall Street analysts, even if they may simply lack the corresponding capital and foresight.
Also, buying companies you understand is another iron rule of investing.