I also like grey or beige but at times just use my bobbins that have appropriate thread colors for the top thread. This is a good way to use up odd pieces of bobbin thread and give you a clean bobbin. I was buying 10 bobbins at a time but now all I do is empty the bobbins by using them to piece all kinds of odds and ends. I do a lot of stitch in the ditch before I even do the quilting so that keeps my quilts from pulling apart. I work on a domestic machine this might not work for a long arm.