Washable school glue has been an amazing discovery for me! Following a tutorial from here on the board (and then finding my own best method) was so easy and fast. By applying the glue to the batting and then laying the fabric on top, you are able to see if there are any puckers/folds and deal with them right then. Once the quilt sandwich is dry (I let mine air dry) the layers will not shift or move no matter how many times it gets bunched up for machine quilting. The needle does not get gummy as with spray adhesives, nor is there any problems sewing through the dried glue. It doesn't require any special tips, brushes or cleanup. I will never use any other method of basting a quilt....Washable School Glue is my best quilting friend!