Laguna Beach alum Kristin Cavallari’s new book is finally here! Kristin gets real in her brand-new lifestyle book, “Balancing in Heels,” where she dishes on her days on Laguna and The Hills, marriage and motherhood. Plus it’s filled with lots of yummy healthy recipes, workouts, style tips and beauty secrets. I had the chance to interview Kristin back in January for an article in the Spring 2016 issue of NS Magazine. She was the absolute SWEETEST and so much fun to talk to. And the book is …