I would keep sprays and regular glues inside. plastic figures should handle cold okay, metal figures also, but the question with metal is the paint job, metal expands and contracts faster and more than plastic, this is probably bad for the acrylics we use. I would check with friends for possible storage of most loved pieces. Have you used up space under beds, in attic, or crawl spaces, lift up floor boards and store between rafters, on top of kitchen cabinets, in baggies thumb tacked to the back of doors that are normally open, or closed like a closet, under the drawers in your dresser, below the sink in the loo. under the couch, or easy chair. Just remember to keep a list of all the storage spaces, there is nothing like finding something that you stored away 5 or 6 years ago and then finding it a week after you needed it. steveb