title: Including headers and Main.h
body: <p>Ok not sure if this is the right way or even a correct way but i have seen this and started to use it,  Say you have 6 files</p>
  
  <pre><code>main.cpp
  main.h
  
  car.cpp
  car.h
  
  speed.cpp
  speed.h
  </code></pre>
  
  <ul>
  <li>1st - should you ever have a main.h? </li>
  <li>2nd - if main.h has #include    car.h and #include speed.h then in
  car/speed.cpp do you just have to    add #main.h (thus it would
  include car/speed.h)</li>
  <li>3rd - should you ever go that route?</li>
  </ul>