A quilting friend taught me this cool method for invisibly adding a hanging sleeve after the quilt is sewn. The photo is the finished sleeve. Cut sleeve the length and width you want it to be; fold and iron the seam allowances for the bottom & top of the finished sleeve. Stitch the top edge very close to the top of quilt or hanging (about 1/8th or 1/16th from edge). Here's the neat trick. Lay the sleeve WS up with quilt folded slightly to the left of the edge of the sleeve. Use your blind hemmer to stitch on the bottom of the sleeve, just nipping into the backing with the point of the zigzag stitch. see photo It doesn't show on the front and is secure enough to hold it securely. She has added pockets to the inside of totes with a variation of this method as well.