title: Making checkbox and radio labels clickable
body: <p>A large number of (dare I say most?) sites do not make the labels clickable for their checkbox and radio inputs. It seems to be a huge usability gain for very little effort. Are there any compatibility/functionality/usability issues with using <code>&lt;label&gt;</code> that would discourage developers from using this tag?</p>
  <p>Even Stack Overflow seems guilty of this, e.g., when asking a question, the <em>Notify daily of any new answers</em> checkbox label is not clickable.</p>