Alain-Paul Ruzé calls his Paris boutique, Talmaris, "the world's smallest department store." Packed with new and vintage housewares, this shop in the 16th arrondissement showcases its owner's devotion to collecting. "Some people keep travel journals," says Ruzé, 34. "I keep shopping journals of my travels." Ruzé spends half the year circling the globe, digging up, say, Murano glass in Buenos Aires or an 18th-century American flag from a Manhattan flea market. Ruzé also commissions pieces, such as Herend porcelain (from $45), reproductions of Biedermeier chairs ($1,450), and photo albums covered in vintage fabrics ($55-$100). "When inexpensive and expensive are all mixed up," he says, "finding that one item is more special." At 61 Avenue Mozart; 33-1-42-88-20-20.