Now this really isn't made from scratch, but with all the cereal the kids eat, I just use the plastic liners the cereal comes in for wax paper.
As you can see, I let the boxes pile up a bit too much.
Just take the liners out, shake out the last bits and crumbs (save for the chickens if you have them!) Then cut the bottom off of the bag, and then cut a straight line up the side seam.
Instant wax paper for no-bake cookies or what ever you use wax paper for.
Note: make sure you don't just stuff the un-cut bags somewhere, thinking you'll get to them someday. You won't have it when you need it and . . . it will only draw pantry moths. Don't ask how I know.