Bril

A toothbrush gets a quick rinse and gets called clean. But every flush sprays microscopic particles onto those bristles, and rinsing doesn't touch them. Bril is a toothbrush case with a safe, powerful UV light built in. It sterilizes the brush automatically after every use, destroying whatever settled on it between brushings. Just drop the brush in, and the UV does the rest.

It works with any brush, manual or electric, and comes in multiple colors so the whole family's brushes stay separate.

That faintly gross thought about what landed on the brush? Gone for good. The case already took care of it.