This is what I do to my domestic bobbins: I fill up a bunch of them in neutral color and store them in a prescription bottle. It makes it easier when I use a bobbin up to have them already wound. I have 2 bottles; one in the neutral beige for piecing the other with empty bobbins to fill for other projects. Mending, bindings and such that need matching thread.
Tomorrow we head out to Corpus Christi; a place I've thought would be nice to visit for 28 years. Ever since some friends moved away, after living in Texas for 2 years, and seeing nothing of the state. I decided we would see the state before we moved. We have been here for almost 30 years and still have lots to see. But I'll get to add Corpus sand to my collection. :)