I make my strips 2 1/8 inches wide, double it and then sew the raw edged side onto the back with a 1/4" seam allowance. Then I fold it over and turn it to the front and sew right down the folded edge. If I choose my bobbin thread right the stitches don't show against the backing. This gives me a 1/4 inch wide binding on the back and 3/8 inch on the front, but it keeps me from having to hand stitch and also with the front being a smidge wider the stitching doesn't fall on the binding that is on the back on the quilt.