Stitching tip

I wanted to take a little bit of time tonight to show you how I have been stitching the outlines of my motifs on the Sonja rug.  This rug has a white background so I can't have any dark colors cross under the light colors.  Therefore, when I am stitching my outlines and lines of the patterns in this rug, I have been running my thread back under the stitches of the same color when I come to the end of a swirl and still have more to stitch somewhere else.  The photo below shows me running the thread under the stitches to get to the next area I have to stitch.  The next area I have to stitch is starting about halfway down the small vertical section of the swirl.  The only places I have allowed the thread to travel over an un-stitched area is when I know the color going there is darker.  This is the back of the rug.