title: What are some specific legitimate uses for singletons?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/228164/on-design-patterns-when-to-use-the-singleton">On Design Patterns: When to use the Singleton?</a>  </p>
  </blockquote>
  
  <p>This question is not about whether or not singletons are "considered harmful" in general. I just want to know, from your experience, what are some <strong>SPECIFIC SITUATIONS</strong> in which singletons seem to work well.</p>
  
  <p><strong>EDIT:</strong>
  Please, if you want to discuss the appropriateness and/or evilness of singletons <strong>in general</strong>, there are aleady exising questions: <a href="https://stackoverflow.com/questions/137975/what-is-so-bad-about-singletons">137975</a>, <a href="https://stackoverflow.com/questions/11831/singletons-good-design-or-a-crutch">11831</a></p>
  
  <p>Oops! I've just discovered that my question has already been asked here: <a href="https://stackoverflow.com/questions/228164/on-design-patterns-when-to-use-the-singleton">On Design Patterns: When to use the Singleton?</a></p>