I use the washable school glue for all my basting. When I first started using it I used too much and it was difficult to wash out. I think the key is use it sparingly. You really don't need much to hold things in place. Now I hold the bottle over the batting and run it out in a very thin stream using a zig zag pattern. I also wash my quilt in warm water with detergent. Cold water wash didn't take the glue out.