Quote Originally Posted by qtrnch View Post
I also use a serpentine type stitch and go right down the center of the seam. It's basically an elongated zig zag stitch, just play with the width and length. It looks nice and you just have aim for the seam. Also, if you have a Bernina, they have an attachment for the walking foot which has a bar that sits right in the seam for easy stitch in the ditch sewing.
You can also use an edge foot I believe.