Here’s how Scrub Daddy founder and CEO Aaron Krause turned a simple idea into a multimillion-dollar company. And it all started with a smiley-faced sponge. Here’s how Scrub Daddy founder and CEO Aaron Krause turned a simple idea into a multimillion-dollar company. And it all started with a smiley-faced sponge. “I’ve always had an affinity for seeing problems with products,” he admits. “But, if you told me 25 years ago that my greatest invention would be a kitchen sponge, I wouldn’t have believed you.” Today holding the title of Shark Tank US’s greatest monetary success, Aaron has sold more than 25 million of his revolutionary smiley-faced cleaning sponge Scrub Daddy, and the company is worth upwards of US$170 million. “Despite what you might think, this product was no overnight success story. In fact, it goes all the way back 25-30 years ago after my college graduation. My parents, both doctors, sat me down to discuss my future,” he recalls. “To their dismay, I announced that I was going to start my own car washing business. To me, I wasn’t simply a car washer – I was the president and CEO of a company.” Aaron started using a new material, urethane foam, to polish cars. Unsatis...