You can use the spine of an old book cut into strips to put bobbins in; the spiral kind, but need to get the right size for bobbins. I bought some soft baby ponytail bands at $$$$ store and put them around filled bobbins and that works good, too. Hope this helps. Oh and some of the catalogs have self stick tape to use for this, but I think its a little too much for too little.
delma