<p>Another suggestion by Scott in the same thread:</p>

<blockquote>
  <p>A good rule of thumb: if you can be bother answering the question, it's good enough to upvote! Also, be kind, and upvote any good competing answers that exist when you give your answer.</p>
</blockquote>

<p>I plan to follow the above advice and scan all the questions I answered in order to upvote clear questions and clear answers. </p>
