Did you know an In-N-Out manager can earn up to $350,000 a year? Or that each location has a secret secret menu that no one can order but the employees? These are just a few of the fascinating things you can learn from this Thrillist article revealing secrets about the chain from a manager. In case you're wondering, he suggests that the best burger you can order at the restaurant is the double-single, two burger patties, one slice of cheese, chopped chilies, chopped onions, and one tomato slice. The bun gets a spiral of mustard and a squeeze of lemon juice.
It's worth mentioning that in another Thrillist article, they make a pretty compelling argument that being a manager at In-N-Out is better than being a lawyer. They have some good points, you can make similar money, you don't need to pay for college and In-N-Out not only offers killer benefits but also sends managers and their spouses on vacations to international destinations every year.
Even if you don't want to work at In-N-Out, you can still learn the inside secrets in this Thrillist article.