I’m always delighted when I see a design that makes you think, “Why has no one else thought of this before?” The stand-up toothbrush designed by Hyun Jin Yoon & Eun Hak Lee is one of those designs.

PITTSBURGH, Feb. 01, 2024 (GLOBE NEWSWIRE) -- “I wanted to create a new storage unit for toothbrushes that could be used at home or when traveling,” said an inventor, from Elgin, S.C., “so I invented ...