Spanx: Sara Blakely

We're hard at work planning our upcoming live shows, so we bring you this favorite from the last year: Spanx. At 27, Sara Blakely was selling fax machines and desperate to reinvent her life. So she came up with Spanx — hosiery that eliminates panty lines — and set to work building her business. PLUS in our postscript "How You Built That," we check back with Chandra Arthur of the friend-matching app Friendish, and how it was recently featured on the show, Planet of the Apps.