I don't have my fabric stored in plastic bins...but do have some in plastic laundry baskets, then stored on shelves in a closet...also unfinished projects in baskets. I do take them out,maybe a couple of times a year to go through the projects and see what I may want to finish, and refold. The fabric in bins are plaids/homespuns since my other storage area is overflowing with them. I love to use plaids for borders on quilts, so they are waiting for the right quilt to be used on. I have never seen any bugs, being in a closet, they won't fade, and I don't really worry about my stash otherwise.