I know Halloween hasn’t passed yet but I have a tip to help you after the season and day are over. Many of my clients want to keep their costumes that they may wear again for a function another time of the year or for a friend to borrow. Many costumes are reusable.especially kids ones that you may be able to pass into the younger children.
The goal is not to add clutter and stay organized. So my suggestion is to get garment bags!! They don’t have to be expensive ones.I would get kids size one for kids and adult size for you . You can put all of them on hangers and hang them in there.It keeps everything in one place! You can store them in the back of the closet,neat and hung up and they are slender. Or hang them up in the garage. Label the outside of the garment bag so you know what it is. AND you are done!!
Be safe out there and have fun!!