Sara Blakely
Photo: huffingtonpost
Sara Blakely is one of the few self-made billionaires on our list. She is the founder of Spanx, a company that specializes in creating leggings, pants, and other intimate women’s apparel. Some even refer to Spanx as a “women’s best friend,” and most guys are huge fans as well considering they tend to accentuate the beauty of the female form.