Jenny Belushi, wife of actor Jim Belushi, doesn't want kids to grow up too fast--at least not in the fashion department. "A lot of stores have great clothes, but they are a little too adult for my taste," says Jenny, who is raising Jamison. 9, and Jared, 6, with Jim. Her answer? Poppy Store, which opened in February with partner Heather Whitney and stocked with kids' classics. "I love age-appropriate clothing that has a pretty, clean look," says Jenny. She's not the only one: Reese Witherspoon and Cindy Crawford are repeat customers.