Mr. Cleans magic erasers work wonders when you have little ones that like to write and color on the walls. I have stopped trying to win the battle of wills on writing on the walls so now they each have a wall in their room that they are allowed to "decorate" then every two weeks they each get a Mr. Clean magic eraser and wash down the wall so they can start all over again. Now not only do they get to "decorate" their wall any way they want to they can change it every couple weeks and it only costs a couple dollars to "redecorate". They love to be able to "erase" things on the walls so are wonderful...