Principle 6. Universality

1. Make a part or object perform multiple functions; eliminate the need for other parts.
   Handle of a toothbrush contains toothpaste
   Child's car safety seat converts to a stroller
   Mulching lawnmower (Yes, it demonstrates both Principles 5 and 6, Merging and Universality.)
   Team leader acts as recorder and timekeeper.
   CCD (Charge coupled device) with micro-lenses formed on the surface