The toothpaste tube is the type of badly designed everyday object that tends to go unnoticed: It’s messy, the crumpled tubes look bad on a countertop, and tens of billions of the single-use plastic packages end up in landfills each year. But it’s been made in essentially the same way for decades. Suri, a London-based startup known for designing a sleek, easy-to-recycle electric toothbrush that quickly gained market share from legacy brands, now wants to change how consumers use toothpaste. The b