A graphic designer and a patent attorney from Olympia, Washington, have a high-tech way to make children's story time more magical, but the Sharks are skeptical of their business model; a father from Brooklyn, New York, has a brand of functional paternity clothing for new dads; parents from Salem, Utah, bring in their five daughters to showcase a solution to hairy drain problems in the shower and bathtub; and a former pro football player and his business partner pitch a better version of a workout device.Also, a profile on Sara Blakely, the founder and sole owner of the category-defining company, Spanx, and how her brand was born from a simple goal. She is an advocate of empowering women to be whatever they want to be in order to build successful businesses and create economic opportunity in their communities.