Marche Aux Puces de St-Ouen - the mother of flea markets where you're guaranteed to find anything vintage, deserves at least 3/4's of a day. Go early, and bring cash. 140 Rue des Rosiers, Saint-Ouen
Christophe Lemaire - the previous creative director of Lacoste, Lemaire's boutique has everything from 70's glam to Japanese high textiles. (It also looks like my fantasy living room.) 28 Rue de Poitou, Marais
Didier Ludot - vintage haute couture heaven with un-heavenly steep prices. But the "little black dress" collection from Balenciaga to Chanel is to die for. 20-24 Galerie de Montpensier, Opera.
Setsuko - although "Free 'P' Star" is the more known vintage shop in the Marais area, Setsuko has a divine choice of vintage faux fur with prices that will put a smile on your face. Go to the back room and dig in! 17 Rue Sainte-Croix de la Bretonnerie, Marais
Le Village St-Paul - this market houses a colony of antique sellers for retro furniture you will make sure to find a way to ship home to. (Open daily from 10 am to 7 pm except Sundays.) Rue St-Paul, Marais.
Gabrielle Geppert - with a sunglass collection that will impress any accessory lover, this shop is a must. 31 & 34 Galerie Montpensier, Opera