I remember another tip. You know how when you put a new bobbin in and start to quilt and it beeps when the bobbin is almost empty? well you can still go quite a ways before it's empty, especially if you are almost done in that row.
The other thing is when you have just have some thread left on the bobbin. I wind that thread on my sewing maching bobbins and that keeps my big bobbins empty and ready for the big machine.
Also, you know how you waste this huge piece of thread when you change threads and pull it through. I wind that piece around an empty toiled roll lol. I dont' know what I will do with all those pieces of all colors of thread but something might pop up....