Until a few days ago, I had never thought of adhesive dots. Since I currently archive my CD collection, my list Add parallel and CDs sort, I came up with the idea to attach to the already ripped CD cases a mark. For example, they are ideally suited. Are inconspicuous, easy to install, easy to peel from the backing and stick well. Whether these are to replace residue after years, I can not say, so soon after the stick but they go well again. Here also sets with more than 5000 pieces are offered, but the first 540 range for a while. Maybe there is even more neurotic perfectionists like me ;-)