Originally Posted by blueheavenfla
Until such time as that million $ invention of the bobbin thread feeding from an external source couldn't we just have ALL machines have the same type of bobbin so I could go from my Bernina to my Pfaff to my Singer to my New Home using just one type of bobbin. I spend way too much time hunting for the "right" bobbin. At my age, I often forget which bobbin go to which machine.
I solved that problem with fingernail polish. I have three different machines and I put a dab of red polish on one, gold polish on another, etc. That way I always know which machine it goes to. I also have bottom embroidery thread bobbins and I have those color coded too.