You can also use the product usually associated with lubrication... WD40. Spray it on, work it in as soap, then wash with usual hand soap... slick as a whistle,,,
Swarfega is very good, and would be my weapon of choice, but this is equally effective ...
Pour some neat Fairy Liquid (NOT a cheapo brand, though) onto your hands and add a spoonful of sugar (easier to find than sawdust). You can add some butter if you wish. Add a little warm water too � Swarfega doesn�t like water but FL doesn�t mind. Work it in and rinse off.