Bag of bags
A bag full of bags, the basic essential of every human on Earth’s household. Especially plastic bags you get from shopping. These bags can be used for whatever a bag can do (carry things) and can continue to be used until they rip or have gross, mysterious substances on them.
Example:
Mom: Don’t throw that away!
Kid, holding a plastic Walmart bag: Where do I put it then???
Mom: Put it in the bag of bags so we can use it again when we need it.
Mom: Don’t throw that away!
Kid, holding a plastic Walmart bag: Where do I put it then???
Mom: Put it in the bag of bags so we can use it again when we need it.