But you'll rarely catch self-made millionaire Jay Leno using this common form of payment. "I don't lease things. I don't buy stuff on credit," the former "Tonight Show" host tells CNBC Make It. "If I can't afford it, I don't buy it."
That includes a home, Leno says: "I didn't buy my house until I had cash enough to afford it. Obviously, that's crazy. Not everybody can do that, and not many people can, but I was fortunate enough to do that and that's just my way."
"The idea of writing a check every month to something, that would drive me crazy," the comedian continues. "Just let me buy it. Here's the money, give me the thing, thank you, we're all set."