#1105 - Librarian Invents Eco-Friendly Dental Floss

A lucky in-flight conversation leads a librarian on a twenty-year quest to start a half-million dollar oral health brand. Side Hustle School features a new episode EVERY DAY, featuring detailed case studies of people who earn extra money without quitting their job. This year, the show includes free guided lessons and listener Q&A several days each week.   Share: #SideHustleSchool Show notes: SideHustleSchool.com Twitter: @chrisguillebeau Learn more about your ad choices. Visit megaphone.fm/adchoices