"But what is it you actually do?" demands your mom, your non-engineering friends, the guy down the block and the annoying guy at the neighborhood barbeque party. It's hard to come up with an "elevator ride" answer on the spur of the moment. Engineering's complicated. Maybe, from now on, just send the questioners to this link, shared by Mike Bacidore, our buddy down the hall at Plant Services.--just a few versions on what engineers really do.