Three Solutions to Crayon Marks on Walls
1. Dampen a clean cloth with water and dip it into baking soda. Use the cloth to wipe the area firmly to remove the marks. This may take a little “elbow grease.”
2. Spray the marks with WD-40 lubricant and wipe in a circular motion with a clean cloth. Wash away any remaining residue with a sponge wetted with dishwashing liquid and water.
3. Wet an eraser-type cleaning sponge, squeeze out the excess water, and use the sponge to wipe away the marks. This is by far the easiest, most effective solution.