I've been trying out washable glue-stick basting for the last few weeks and am really happy with my experiments.
While I usually use fusible batting (Hobbs 80/20), I wanted to use fleece as a backing on a quilt, without batting. The glue stick, used in quick lines about 4" apart, turned out perfectly.
Now I am in the middle of making a snowball quilt, and have to sew on 400 tip squares. Instead of pinning the little squares on each corner of the snowball, I'm using the glue stick: 3 quick dabs. No temptation to sew over pins, very stable, very accurate!
It's a joy to do!