I cut 2-1/2" strips and sew together diaganolly.
I sew to the back first.
I don't iron (maybe I should try that sometime???)
I fold over to the front.
The final sewing is my biggest problem - because I sew in the ditch on the back of the quilt and I want to make sure I catch the front binding. What I do is I lay the quilt out on the floor. Then I fold back and pin in the ditch. I put my pin in the ditch where I intend to sew - all of the while I am pinning I flip back to be sure that I am catching the back. Then I sew slowly on the back in the ditch checking very often that things are lining up. I use a straight stitch.. I have thought about trying a decorative but not yet.
Doing it this way I am please with the outcome - its not perfect but I can live with it. I only give I don't show.