As temperatures rise, summer clothes get skimpier and skimpier: are you ready? Jump-start your springtime slimdown with classes and consultations from CRUNCH gym, nutritionists, beauty experts and more at SELF Magazine's Workout in the Park Saturday, June 1, at Butler Field in Grant Park. Running from 11 a.m. to 3 p.m., the event costs $20 in advance and includes tons of giveaways, celebrity guests and a free one-year subscription to the magazine.