This is a fun read again....
I've been taking care of my mom. Some times things get boring so I sew. I got out her old beater Featherweight and was looking at her bobbins. One was so bent out of shape it should be pitched.......... The rest were full of various colors. I finally pulled all 17 layers of thread off one and put on white thread, then did the same for black thread. So far I'm ok with just that. I guess if I have to do some button holes or something I'll need to unwind another loaded up bobbin. Mom had quite a genius for re-purposing or reusing just about any piece of plastic you can imagine. She had a hard time throwing it out. She doesn't think about that kind of thing all that much these days unless it is disposable underwear. She would love to find a way to recycle that stuff. ew.