title: iPhone - general methods on a separate file
body: <p>I have some methods that are used by several classes. My idea was to put these methods on a general separate file and have this be seen by other classes.</p>
  
  <p>How do I do that in Xcode?</p>
  
  <p>Sorry but I am new to iPhone development.</p>
  
  <p>thanks</p>