In Germany it is believed that snapping a picture of a chimney sweep in costume brings good luck,” says Charlie Mullis, 36, of Chattanooga (left). Whether this photo brought luck to the photographer is moot. But there’s no doubt that Charlie has struck black gold in his new line of work. A GI in Germany in 1963-64, Mullis was fascinated by the local sweeps, who wear top hat and tails. Three years ago Charlie, a brick salesman, opened a fireplace accessories store for his wife, Charlotte. Business boomed and Charlie quit his own job to join her. This winter he branched out and began cleaning flues and stacks. Soots him fine. His business is increasing by leaps and bounds. Chattanooga looks up to him. Julie Andrews, eat your heart out.