Once Oprah listed it as one of her "favorite things" in 2000, it was game on for Spanx.
Since then, celebrities like Gwyneth Paltrow and Emily Blunt rarely make an appearance on the red carpet without it. Department stores stock up on Spanx products. Even my own mother admittedly professes her love for the shapewear.
And it shows because at 41, Sara Blakely, founder of the brand, covers Forbes' Billionaires issue as the list's youngest self-made billionaire, "by reinventing the girdle."
For someone whose initial investment was $5,000, without any outside investment or advertising support since 2000, Blakely has certainly done well for herself. She owns 100% of the private company valued at around $1 billion, has absolutely no debt, leads a team of 125 employees, showcases over 200 products in 11,500 stores across 40 countries worldwide.