Girlawhirl's already a fan of her perfectly tailored long v neck cardigans for layering over sheath dresses in the office or pretty full skirted floral patterned dresses. They create just the right amount of polish, without any of the stuffiness of a jacket. But when she's headed out to run errands, meet up with her pals for brunch, or even hop on a flight, a casual version of the season's “uniform” seems more appropriate. And now she's all over the striped version of her favorite new silhouette, the long cardigan…