Sara Blakely is a self-made billionaire who founded Spanx. She started the company with $5,000 after developing the idea for her product. Through hard work and without outside investment, she grew Spanx into a $250 million company that is now a leader in the undergarment industry. Blakely remains highly involved in the company and uses her success to empower other female entrepreneurs through her foundation which has raised $17.5 million. She emphasizes balancing her career with family by spending quality time with her husband and son.