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.
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Show notes: SideHustleSchool.com
Twitter: @chrisguillebeau
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