I too have "old" thread, and if it tends to start breaking, this goes for that good machine embroidery thread too, put it in the freezer overnight, in a plastic bag, it brings back the moisture in the thread and it is strong again. Sounds crazy, but it works.
As to the wooden spools left over, I have used mine as pedestals for projects, also, could be used for arms and legs for dolls. Get creative!!!