During a recent tour of her residence—a two-story cottage, painted gray with a teal door—the concept of sharing came up a lot. Atop the stairs on the second floor, a cozy guest room welcomes folks who need to crash for the night. Just beyond that is Tibbs’s bright and airy master suite, featuring a vaulted ceiling, exposed beams, a midcentury-modern fireplace, and a seating area for friends to gather. “Most of my friends have keys. A lot of my friends are here when I’m not,” Tibbs says. “It’s a really active house.”