To find your big idea? Look for it. And look for it. And be ready to act. Spanx founder Sara Blakely was actively seeking a business idea when she thought of Spanx. Then she moved fast, found help in the right places, and went all-in. The result: A billion-dollar company & women's wardrobes transformed.. With cameos by National Geographic explorer Andrés Ruzo, former Director of the US Patent & Trademark Office Michelle Lee, and Endeavor CEO Linda Rottenberg.