Remove oil/grease stains

blue uranium

Sprinkle talcum powder on the stain to absorb it and wash as usual
Dab neat ethanol alcohol on the stain
Rub eucalyptus oil on lipstick/oil/tar/grass stain and wash as usual
For wax stain, iron a piece of brown paper over the stain. The heat will dissolve the wax and it will be absorb by the paper

Works for: cooking oil, engine oil, oil-based make-up, salad dressing, butter/margarine, wax.