Before Airbnb had over 7 million listings worldwide, there was one sole lodging: three inflatable air beds at CEO Brian Chesky’s San Francisco home. He had quit his job and packed up all his belongings in a Honda Civic to make a cross-country move, and couldn’t pay his rent. That’s when he noticed all the local hotels were booked because of the Industrial Designers Society of America’s International Design Conference in San Francisco, and a business was born.