I'm Kristin Cavallari. I work from my kitchen counter, love leftover lunches, and hate the carpool line — here's my typical day.

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…