There are hard plastic containers, like regular reusable food containers, that have good seals and little vacuum pumps on the lid. You actuate the lid pump a bi

There are hard plastic containers, like regular reusable food containers, that have good seals and little vacuum pumps on the lid. You actuate the lid pump a bit and it removes enough air from the container to keep food for a bit longer. It's not magical, it won't keep food forever. But neither does cling wrap.