Expert seamstress, educator, and blogger Nancy Zieman shares some tips for working with double needles. She points out that double needles are great for decorative stitching, hemming, and heirloom sewing. We’re particularly enamored with using this stitch to accentuate hemlines, cuffs, and other edges with a contrasting thread color. Of course, you can buy luscious silk top-stitching thread and double needles at Britex Fabrics.