Olive oil. (or lotion) Takes oil to remove grease. Rub the oil in until it dilutes the grease. It'll make a cool ooky smear. Then wipe the oil off with a paper towel, and wash as usual.
You can also use rubbing alcohol. But that can be very drying to the skin.
(use hydrophobic substance to remove hydrophobic substance... vague memories from chem 101... many many years ago.)