Welcome toCleaning.Tips.Net
Subscribe to the Tips.Net channel:

Visit the Tips.Net channel on YouTube
Bugs and Pests Tips
Family Tips
Health Tips
WordTips
Here are quite a few tips for removing crayon from your walls. Your course of action will depend on the surface of your wall; however, I am sure you will find some information here that will make that crayon mark a thing of the past.
Spray the mark with multipurpose lubricating oil (don't let it drip on the floor). You can put this on a rag and wipe the area instead of spraying the wall if you like. Then you can use a paper towel or clean white cloth to gently wipe the mark.
If the crayon mark is stubborn, sprinkle a little baking soda on a damp sponge and gently rub in a circular motion. If lubricant residue remains, dampen a sponge with a solution of one or two drops of mild dishwashing liquid to one cup of water. Squeeze out the sponge and gently rub the mark in a circular motion. Rinse the sponge and lightly moisten it with water to wipe the area once more; then dry with a clean cloth.
Other things that you can use to remove crayon from walls are
You can get crayon off of marlite, paneling, or some tougher types of walls using a bit of toothpaste. Don't use the gel type, which is known to stain. Use regular paste and a soft cloth to clean up the crayon marks.