I use 2 1/2" double fold binding sewn to the back, then flipped to the front and machine stitched with a bobbin thread that matches the backing. I use a "stitch in the ditch foot" or a "blind hem foot" with my needle set to the right of center. My stitching on the back usually lands just to the outside of the binding, on the backing, so almost invisible. All my quilts are made to use, wash and love, so I want the bindings secure for years of use.