I'm a "Shark Tank" Superfan, and These Are the Best Products From the Show

Scrub Daddy Scratch-Free Multipurpose Kitchen Sponges ($19)

No Shark Tank roundup is complete without praising Scrub Daddy, which made its debut in 2012 and has since racked up hundreds of millions in lifetime sales. The sponge changes texture with the water temperature — firm in cold water for tougher scrubbing and soft in warm water for gentler jobs like wiping down countertops. It's also dishwasher-safe and hard not to smile at for obvious reasons.