I've read most of these posts. . . I've been thinking . . . many of us just continue the traditions we were raised with, without really thinking about why those traditions were in place. Some of the "don't do on the Sabbath" stuff is misplaced legalism, and some is simply honoring our God or our parents.
I am a professional longarm quilter, and I try to "work" 6 days a week, and sew or quilt my own projects in the evenings and on Sunday. That is my time of rest. We all need that. But if I have something that just has to get finished, I'll do it on Sunday. I'm not legalistic about it.