The article addresses the issue of climate control guidelines in museums. It suggests that it may be unnecessary to insist on rigid, complex, or expensive environmental control to ensure the stability of collection artifacts. Implementation of somewhat relaxed environmental recommendations with installation of simple systems that keep most buildings within the 35-65% relative humidity range with temperature at about 700°F would be sufficient to ensure the stability of most collections. It would also result in large savings in construction and maintenance and yield dramatic reductions in the use of energy. Thermodynamics dictate that more energy will be used in a tightly controlled, single set point system than in a system allowed to vary in a given range using multiple set points.