Never thought of using Glad Press 'n Seal, but I've used Kabnet Wax deli paper with success. It's translucent like tracing paper and available in a lifetime supply at Sam's, and probably Costco.
Trace design onto the paper, then pin or spray baste to quilt top. The paper helps the free-motion foot glide over the surface, especially over thicker areas. It's a bit of a pain to remove all the little bits that cling to small areas of stitching, but otherwise it tears away very easily.
Stencils are great, too! You can make your own....blank stencil plastic is available at JoAnn's, Michaels, etc. Use an X-Acto knife with a pointed blade to cut the design, remembering to cut it in long dashed lines. Takes a little time, but when finished you have a permanent stencil.