Well, the bad part about investing in thermal wear is that you need to keep them away when summer starts, only to be taken out again next year. When this process starts, the best thing to do is to send the coats and jackets for dry cleaning and have everything else cleaned well, possibly a good machine cycle, depending on their instructions for washing. Next, start folding and keeping them in a well-ventilated box. Store it safely in a space that does not have moisture or any pests. This way, your clothing will be safe and ready for you when next winter comes.