Later this month, Prada will introduce its new Prada Beauty line of skin-care products in Neiman Marcus, Saks Fifth Avenue and its own U.S. stores. But don't look for bottles or jars. The creams and balms will come in individual foil-wrapped packets to remind users of daily maintenance use, according to Miuccia Prada. "Basically, the idea was to make the treatment very personal," she said. "We use the little packages so each day you can treat yourself, depending on how you feel."