Lisa Korn, Saks Fifth Avenue

Sixteen years at Saks and eight before that at Nan Duskin—and Lisa Korn is still as fashion-obsessed as ever. The secret to her coveted status as one of the 5th Avenue Club’s top sellers? Could be her elite buying access to every designer out there (even ones the Bala Cynwyd Saks doesn’t carry). Could be that when it comes to that Oscar ball gown you just have to have, she’ll be absolutely relentless until you’re in it.