Our money is worn out within a few weeks. Paper money never lasts very long. This is good in that it keeps the fake money to a minimum. But money in the event of an epidemic, virus or disease bio-attack could help spead it fast. now then If the money was coated with .1 mil of ceramic coating it could literally be washed without being destroyed. Glass is impervious to moisture and could be cleaned with steam and be safe to use again. Small businesses could clean the money with a little steam mach.