Don't use wax paper and don't use freezer paper to prevent fusible from sticking to your ironing board, parchment is the best choice for this purpose.
Freezer paper is great for
prepping applique. I also use it for sewing patterns like blouses and skirts. I trace the pattern piece onto freezer paper, then iron the freezer paper onto the fabric and cut the piece out. Beats using pins.
Wax paper is great for rubbing on the base of light bulbs - makes them screw in a lot easier. Also, if you hang hangers on a metal pole, rub wax paper on the pole, it will help the hangers slide easier and quieter.
Parchment paper is great for fusibles. It's basically what the paper is on paper-backed fusibles. Parchment is also great for non-stick baking.
This has been Peckish's Helpful Hints and Hacks, thank you for watching.