I keep a jar of organic powdered milk next to my sink...moisten my face with water, scoop some powdered milk into my palm, mix it with a little water to form a paste, rub it all over my face and then rinse. You can use regular milk instead, but then you have to deal with the fridge. The lactic acid in milk is a gentle AHA so it exfoliates the skin and leaves it incredibly soft and smooth.
It's simple, paste-like, needs no refrigeration, 100% natural...and it's also cheap!