Billionaire founder Sara Blakely's best business advice

SPANX inventor Sara Blakely believes that anyone starting a business should ask themselves one important question.

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Sara Blakely Bio: How the Self-Made Billionaire Invented Spanx

Billionaire Founder Sara Blakely's Best Business Advice

Billionaire Spanx founder Sara Blakely has advice for teens at

Secrets Of Sara Blakely Founder Of Billion Dollar Business: Spanx

Bumble's Founder Wants Women to Make the First Move, in Love and

Forbes says Spanx's Sara Blakely, of Clearwater, is world's youngest self-made female billionaire

5 Mindset Tactics of a Billionaire (Sara Blakely's Secrets)

Sara Blakely, Speaker, Entrepreneur & Founder of SPANX

Business tips from a billionaire