Sharon Schambers uses gle on everything. She uses the glue stick and elmer's with a tiny tip. On applique you can use it to hold the 1/4" under and then place it with the glue.
My favorite things in addition to the usual is my frosted ruler, my serrated scissors, walking foot, glue, and starch.
I learned about the starch from you all and it's one of the best tips I've leaned lately. It makes it so much easier to match seams.