Galeries Lafayette is one of those places that you wander into unawares, leaving hours later a poorer and humbler person. It has everything (over 75,000 brand names). Along with the world's largest perfumery, the main store has the "Espace Lafayette Maison," a huge Yves Taralon-designed emporium dedicated to the art of living à la française. There is fashion for every style and then some. Other location: Centre Commercial Montparnasse, 14, Montparnasse, Paris, France, PHONE:01-45-38-52-87; Métro: Montparnasse Bienvenüe. Don't miss the delectable comestibles department, stocked with the best of everything from herbed goat cheese to Iranian caviar. The Montparnasse branch is a pale shadow of its sister store. Métro: Chaussée d'Antin, Opéra, Havre Caumartin. Other location: Centre Commercial Montparnasse, 14, Montparnasse, Paris, France, PHONE:01-45-38-52-87; Métro: Montparnasse Bienvenüe. Free fashion shows (01-48-74-02-30 reservations) are held Tuesday at 11 AM and Friday (April-October) at 2:30 PM.