The idea that multiple guests are required to use the same damp hand towel in the powder room of a private home is simply unsanitary.  The Single Use Hand Towel is the same towel used by Four Seasons Hotels in their lobby restrooms.  The towels are described as "single use" because after a person uses the towel to dry they hands and, perhaps, tidy the sink area, they put the soiled towel into a basket with other soiled towels.  The 12"  x 12" towels are easily laundered.  They are hemmed, have a patterned weave and after laundering they become softer.