One-time sportscaster Sara Happ left ESPN five years ago, trading commentary for cosmetics and she couldn’t be, well, happier. The Lip Scrub, a product she formulated from ingredients she found at Whole Foods, is primed for aggressive expansion starting in 2012. Until now, she’s turned down retailers (QVC and Sephora) and product extensions to concentrate on building a solid customer and retail base. During the first three years of operating her namesake brand, her line consisted of T...