Step 9: Making a Dry Erase Board
Due to the nonporous nature of aluminum foil, it works very well as a dry erase board. We can easily make a portable, flexible dry erase board by making a piece of one sided LAF, cutting it to A4 size (or letter paper size...), hole[punching it, and then putting it in a binder.
I keep one in the front of my math binder, it is very useful for sketches and quick calculations. Make sure that you don't write with a pen or pencil on a piece of paper that is on top of the LAF, as it will leave marks.