Nathaniel Wellen, a 15-year-old innovator, clinched a $100,000 investment offer on ABC’s “Shark Tank" for his Duo umbrella. Designed for two people of differing heights, The Duo received acclaim from ...
We may earn a commission from links on this page. If you’re like me and think everything needs to be a power tool, you might have considered using a rotary tool to wash dishes or scrub the sink. But ...
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