I go to Joann's and buy some of the very thin clear vinyl. I then cut it into strips that are the right size for the spools -- I cut them long enough so there is some overlap. I wrap all my spools with this vinyl to keep them from unwinding. I have been doing this for years and I when I finish a spool I can use them on another spool about the same size. I cut paper strips first and when I was happy with the way they fit, then I cut the vinyl.
I have heard that some folks use the Glad press and seal, but I don't know if it is reusable and my strips definitely are.