What happens when a charismatic home renovator marries a budding design whiz? You get the billion-dollar powerhouse that is Chip and Joanna Gaines. The Gaines’ TV show Fixer Upper became a cultural obsession, turning shiplap and farmhouse sinks into a lifestyle movement that swept America. When they walked away from that show at peak popularity, everyone thought they were crazy. Instead, they turned their business Magnolia into a thriving lifestyle brand, which includes a network, retail, restaurants, books, and a magazine. The Silos, their Waco headquarters, became an unlikely tourist destination, drawing millions. Ch...