Store a permanent marker somewhere in your car. Yesterday Teddy took a soccer ball to soccer, four other kids had the same ball. So I whipped out my sharpie from the car and he wrote his name on the ball. It was important no one accidentally took his ball, it had a bunch of teeth marks from the dogs and a slow leak. You can also use the permanent marker to write your child's name on a jacket, lunch box, backpack, whatever. Or you can leave a note on someone's car and the ink won't run on the paper. There are lots of times when a permanent marker just might come in handy! So keep one in your car.