My Big Mama is my No. 1 financial role model. Much of my advice stems from what she taught me. She never made more than $13,000 a year, yet she paid off her home before she retired. She saved money from every paycheck. She taught me to be skeptical. It makes me cry to think that I'm a nationally syndicated personal finance columnist for one of the world's best newspapers and my core advice comes from my black grandmother who was a nurse's aide with just a high school education.