One tenant who made the move from White Flint to Montgomery Mall says she couldn’t be happier with her new digs. “My sales are twice what they were at White Flint,” says American Classic Clothes owner Lenore Briskman, who’s been designing and sewing traditional children’s apparel for more than three decades. Briskman opened her original store in Potomac Village after people admired the clothes she made for her own children. “My customers range from Nancy Marriott and other multi-millionaires to the waiter at the Cheesecake Factory two doors down,” says Briskman, whose husband Robert was a founding executive with Sirius Satellite Radio. Still a bundle of energy at 78, Briskman says sewing and running the store are her favorite forms of relaxation. “The mall asked me when I plan to retire,” she says. “I told them, ‘When they throw dirt in my face.'”