You didn't test White Magic - it's easy, and works quite well. But, your big mistake with OxyClean was following the directions - OxyClean will get any stain out of anything if you mix it with water (kind of a paste), apply it to the stain and LET IT DRY. Then put the item through the wash. Not the easiest way, but the most effective.

I also use Oxyclean contra directions--I make a very concentrated solution with water and soak just the stained portion of the item in the stuff overnight. It gets out most stains that have defied normal stain removers and laundering.

not the powder.