In-N-Out is beloved by fans for its low prices and impressive quality, says Business Insider. For example, the chain's famous Double-Double costs just $3.85. In-N-Out keeps its prices low thanks to a limited menu, in-house production, and real-estate strategy. By doing its own sourcing and distribution, In-N-Out likely saves 3% to 5% in food costs a year. The company also cuts out an estimated 6% to 10% of total costs by owning most of its properties.