Gadgets

As I work to come to terms with my gadget problem, I find that I need boundaries but am unable to define them for myself. The difficulty is that the border between gadgets and non-gadgets is a little fuzzy. Which brings me to my question. Are the following examples of gadgets? Please explain your answers.

• stereo
  
• microwave
  
• car
  
• foreman grill
  
• charcoal grill
  
• DVR
  
• trash compactor
  
• toilet
  
• flashlight
  
• smart phone
  
• television