Make your own foaming soap - First you need a Foamy Hand Soap Bottle. I like the ones from Bath & Body Works. They seem to last a little longer than the other brands but any will work. Fill the Hand Soap Bottle half full with water and then add 2-3 tablespoons of any liquid soap. Fill the rest of the way with water and gently shake. That's it and it will make your soap last twice as long!