Something that really opened my eyes to thinking about the design of everyday things was "Objectified" (2009), a documentary on industrial/product design.
In the context of "The Medium is the Massage", I brought up (industrial) design because physical products are a major part of our daily lives and I never really gave much thought as to how a tooth brush or a Macbook was developed and built. Yeah Objectified had a fair amount of self-glorification of the designer egos, but before I saw the film I had no real concept of who was behind all the stuff that I use in my daily life.