Add Yahoo as a preferred source to see more of our stories on Google. If you look behind the cap on a French’s yellow mustard bottle, you’ll notice a handy little clasp that holds the lid in place.

Condiments like ketchup and mustard are oftentimes just as crucial as whatever they’re topping, but let’s be real: They can get messy. Squeezing them out of bottles can lead to drips and splats that ...