Removing Crayon from Vinyl Floors

My little boy has discovered the wonders of crayons. He even wrote all over the vinyl kitchen floor at my parents' house with his favorites.

Luckily, I was able to get it off using silver polish.

Crayola has a whole portion of their website devoted to removal of their products. In case you're wondering, they claim WD-40 removes crayon from brick, concrete, carpet, chalkboards, cloth car interiors, painted walls, plastic, and tile.

(Does Crayola own the company that makes WD-40??)