I use it mostly for applique quilting. You can temporarily stick together appliques that have an iron on stick without making it permanent till you are certain of placement. AND hot glue gun residue does not stick to it.... so I use it under crafts projects as well.
I sew and often want to appliqué things to my work. This pressing sheet makes the iron glide smoothly and holds things down without any problems. Having the package makes storage easy, and the sheet isn't messed up.