I always seem to get the box of baking soda or salt, or sugar, or barley that leaks.
Rather than pouring everything into another container, I pop a CoverMate Stretch-to-Fit on the bottom of the container. I also use these on half used cans of lemonade or orange juice in the freezer.
Since they are washable and reusable and come in a variety of sizes in one package, they make a quick simple solution to conquer the potential mess.
Good idea!