A big zip lok is what I use...then transfer them to smaller freezer zip loks...I also add some of that craw cane...seems to keep them fresh and the fish like the scent. Just make sure the worms are straight in the bag...kinked worms dont work!
They are defintely in good tight sealed bags. I guess I was looking more for the place of storage (or any helpful info). I've just had them in the boat or in the garage all along and wondered if that was detrimental to their effectiveness at all. Thanks.