I am doing a big hand applique project right now. I am using Stable Magic to make my applique pieces ready to applique. I like to have the edges entirely turned under before I start to sew.
It is similar to the freezer paper technique except you use water soluble glue stick to adhere the Stable Magic to the fabric. A Purple Thang is useful for this . Then I use the glue stick to glue the applique piece to the background. I find this even better than the little applique pins that I used to use.
The beauty of this method is that when you are done, the Stable Magic is water soluble so it disappears when you wash your quilt. No picking out freezer paper or cutting your background fabric.
I also like the fact that I can make my templates while watching TV.. no iron and it's easier on my fingers.