I put them on back right-hand corner. I write the label with a Pigma Permanent Pen and sew a border around the label with a fabric from the quilt. I've tried printing them on the special designed paper but found they totally wash away. Found that out the hard way when I made g'daughter a t-shirt quilt and printed pictures from high school and added them to sashing. When I washed the quilt, ALL the pictures almost completely faded away. Would like to know others experience with the printable fabric. I tried soaking some in Bubble Jet and they faded until they looked more like negatives than pictures. I worry that all my earlier quilts with printed labels will disappear (the label, that is) once they are washed.