New and developing investors who listen only to stock experts are doing themselves a disservice, Cramer said Friday. Some of the best advice often comes from the people who know more about the underlying businesses.

Restaurateur Danny Meyer sure taught Cramer a thing or two. Meyer, who owns New York’s Union Square Café and Gramercy Tavern, among others, said that companies who emphasize the customer would outperform during a downturn. Clients develop such a loyalty that they continue to eat, shop and invest with these firms even when the money’s tight.