Now the day on which Jesus had made the mud and opened the man’s eyes was a Sabbath.
(John 9:14)

We learn through scripture, that although the Sabbath is a holy day and a day of rest, we should still use our common sense as to what is acceptable behavior on the Sabbath.  Jesus "worked" on the Sabbath in the above scripture, but He was helping a man to restore his eyesight.  I think that if your action is God-pleasing, it really doesn't matter if it's done on the Sabbath as long as it glorifies God.  As always, it goes back to the heart of the deed and the motive behind your action.