Crayons are a wonderful tool for little ones to express their creativity, and you’ll proudly display their efforts on your refrigerator for years. But accidental artwork on other surfaces around the home are not things you want hanging around.
If you have crayon mashed into the carpet, you can’t remove it quite the same way as wax, which is a mistake that many people have made. You should first scrape off all the crayon you can, either with a spoon or dull side of a blade like a butter knife.
A thin piece of cardboard such as part of a cereal box will come in handy. Cut a section and place it behind the clump/spot where the crayon is, then carefully spray the crayon mark with WD-40 oil, making sure to use the “needle nozzle” tube so the oil doesn’t get on more than it needs to. Next, take a small, stiff bristle brush and work upwards in the nap, while laying the crayon mark on the cardboard. Wipe with paper towels. Spray on more WD-40, work in some dish detergent with the brush, then wipe off with a damp sponge. Move your cardboard around, so that you’re always working against a clean section. If the stain remains, repeat the last oil and soap treatment, then wash the section of carpet with a Shop Vac or other cleaner.
Did someone use the living room wall for their canvas? Just take the same can of WD-40 (a car part lubricant) and spray it on the marks, then wipe off with a soft cloth. Treat again if a stain remains, then wash the wall with warm water and dish detergent.