What Spot removal chemicals do you recommend ?
For normal soiling I recommend Woolite Spot and Stain Removal.
For grease, crayon, ink or anything oil based I recommend OOPS, Found at True Value Stores.
Remember, do not apply directly to spot. Apply to the finger tips of a damp rag and work from the outside in. Once the spot is removed use another damp rag to remove the detergents.