If you've washed a crayon in with a load of clothes:
- Rewash the load with the hottest possible water.
- Add 1/2 to 1 full box of baking soda.
- Repeat if necessary.
If you've stained your white clothes by washing them with colored ones, to undo the damage:
- Add baking soda, salt, and detergent to warm water.
- Soak the clothing.