Sara Blakely: the Spanx creator talks about control

Sara Blakely may not be a household name, but thousands of women up and down the country will be saying a silent prayer of thanks to the 37-year-old American as they squeeze into their party dresses over the festive season. As the phenomenally successful founder of the Spanx control underwear empire, Blakely is the global Pied Piper of the wobbly bits brigade.

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