“Another believer is Janet M. Loeffler, a co-owner of Bath Island, a personal care and gift shop on the Upper West Side. Business was slack, so she called Judith Wendell of Sacred Currents, a feng shui design firm, for advice. Ms. Wendell suggested simple changes…an increase in traffic was instantaneous, Ms. Loeffler said. People who thought the shop was relatively new to the neighborhood were surprised to learn that it had been there 10 years. ‘In my six years here, this last one has been the best,’ said Kenna Kolaitos, a sales clerk.”