All aspiring billionaires should study the business case of Sara Blakely and her product, Spanx. She's one of the best examples of using necessity
Sara Blakely started Spanx in 1998 and never gave up. She just
How did Sara Blakely become a billionaire? - Quora
Spanx CEO, Sara Blakely, gives each employee $10k, first class
The Success Story of Sara Blakely, the Self-Made Billionaire
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Success Resources - Congratulations to Sara Blakely founder of
How Sara Blakely Created A Billion-Dollar Brand
Blackstone buys majority stake in Spanx, valuing it at $1.2 bln
How Spanx founder Sara Blakely makes and spends her $1.1 billion
Blackstone buys majority stake in shapewear maker Spanx
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