Spanx slips owner into billionaire club

Forbes Senior Wealth Editor explains how Spanx inventor Sara Blakely was able to join an exclusive club.

Billionaire Spanx founder Sara Blakely captures family road trip

My own butt' Spanx inspiration: Billionaire inventor

Spanx Founder Sara Blakely's Guide to Surviving Anything

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Female founders are crashing the billionaire club: Sara Blakely

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Who invented Spanx? Billionaire Sarah Blakely's story, with some

Female founders are crashing the billionaire club: Sara Blakely

Undercover Billionaire: Sara Blakely Joins The Rich List Thanks To

Spanx founder Sara Blakely's $1 billion idea started with just $5,000 in savings and wanting to solve her own problem