Has anyone mentioned parchment paper yet? It works the same as an applique sheet for fusing. I also use it to turn Misty Fuse (a very lightweight fusible web) into a paper-backed fusible. I iron the Misty Fuse between two sheets of parchment paper, then peel the paper off one side while it is still warm.
Used the freezer paper on my ironing board last night for a big fusing job. Used the parchment paper on top to protect my iron from the fusible. Misty Fuse is very fine and hard for me to see. I got a little on the freezer paper. All I did was iron a freezer paper patch over it so I could fuse again.
The everyday items I use the most for quilting are freezer paper (I use it for machine applique too), parchment paper, blue painter's tape, and Elmer's white washable school glue.