In 2001, Wales launched Wikipedia, a website where thousands of community members could contribute, edit, and monitor content on just about anything.
First, she used her high school bodybuilding experience to find work as a personal trainer.
Then she taught herself to give facials, and eventually started her own spa and skincare line, Bliss.
That simple frustration inspired the idea behind Warby Parker – and disrupted the eyewear industry.
PLUS for our postscript "How You Built That," an update on Bellyak, a kayak where you lie on your belly and paddle with your hands.
PLUS for our postscript "How You Built That," how Hannah England turned a common parenting problem into Wash. After high school, Marcia Kilgore moved to New York City with $300 in her pocket and no real plan.
One step at a time, she became a successful serial entrepreneur.
The spa became so popular that it was booked months in advance with a list of celebrity clientele.
After selling her shares in Bliss, Marcia went on to start four new successful companies: Soap & Glory, Fit Flop, Soaper Duper, and Beauty Pie.
PLUS in our postscript "How You Built That," how Florence Wetterwald created Blabla dolls – eco-friendly knitted dolls made in Peru.
In 2008, it was nearly impossible to buy a fashionable, affordable pair of glasses online.
In 1983, he began selling upgrade kits for PC's out of his dorm at UT Austin.