500 Days of Kristin, Day 365: One Year of Kristin 8.41K Allie Jones 01/24/16 03:50PM Filed to: 500 days of kristin 500 days of kristin kristin cavallari One year ago, Kristin Cavallari began writing a book about “really just everything” in her life. That book has yet to be published.This has been 500 Days of Kristin.[Photo via Getty]