Shipping bags

So I just ordered a bunch of stuff from a store called Kuwallatee. When I received the items each item was nicely stored in a Kuwallatee supper bag type thing. I wanted to keep these bags to use for travel and what not in the future but my husband told me that was crazy and a hoarder thing to do then he proceeded to throw them in the garbage. Lol I know this is a stupid question but do you keep those kinds of bags or do you throw them away? It’s made out of almost a rubber texture and has a plastic zipper to open and close the bag.