Some of the 2,500 people who came to hear Jill Cataldo talk about coupons started lining up four hours before she took the stage at the performing arts center in Charleston, S.C., in March.
Cataldo's sold-out speech was touted as the largest event of its kind ever held in the United States.
This crowd was big, but Cataldo, an entrepreneur and mother of three from the far northwest suburb of Huntley, is used to the attention. She has secrets to share that are just right for this penny-pinching era: how to use those little clips of paper to save a family thousands of dollars a year at the supermarket.
She's the first to admit she's not the only one teaching about coupons,...