That is what is happening with businesses of every kind from retail and wholesale product lines to service companies. They are discovering a seemingly new stream of income, which ironically, has been around a long time, in various shapes and forms. It is called “continuity income” or in many venues it is called “memberships” and consists of recurring billing. For years work out facilities and tanning salons, among other businesses, have given opportunity to join a club or facility and pay a monthly fee. Country clubs and private golf courses are known for their monthly club fees.