Kristin Cavallari is the founder of UncommonJames Courtesy of Kristin Cavallari This as-told-to essay is based on a conversation with 39-year-old Kristin Cavallari, a reality TV star and entrepreneur based in Franklin, Tennessee. It has been edited for length and clarity. I live and die by my schedule. My three kids, who are 10, 12, and 14, are my first priority. Next comes Uncommon James, the jewelry, skincare, and homeware company brand I launched in 2017. I can already tell you what the n...