The Surprising Secret Behind a Shark Tank Star's $5 Billion in Sales

At first, every single person he approached told him to go away. "They were nice about it, but they basically told me to get off their property," recalls Kevin Harrington of his early days, going door-to-door as teenage entrepreneur living in Cincinnati, Ohio. "I remember as a high school senior, knocking on twenty straight doors in a neighborhood, and every single person telling me they weren't interested."


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