Originally Posted by brendadawg
To keep the thread from getting unwound (on spools that don't have the place to wind the end), I use a product called (I think) thread socks. It's a long piece of stretchy mesh and you can cut off a piece about 1" or so, and it stretches out to go over the spool and keep the thread in place. One package will do several spools. I don't remember where I got it, but if I see it again, I'll buy several packs. It's wonderful.
For thread storage only, light-weight vinyl works well, too. I bought a few yards @ Joann's and use a pinking blade rotary cutter to cut strips about 2" wide off the vinyl sheet; then when I'm ready to store a cone or spool of thread that does not have it's own thread-lock device, I wrap just enough of the vinyl strip around the thread cone/spool to overlap ... the vinyl then sticks to itself. I store my thread knowing it can't unwind. A few yards of the thin vinyl is inexpensive, if I remember correctly.