&gt; How does everyone feel about the last item, the &quot;seven lines per function rule&quot;?<p>As with all constructs that incorporate magic numbers, I <i>really</i>, <i>rather</i> dislike it.<p>Playing &quot;follow the function call trail&quot; can be just as harmful to code readability as overly-long functions.<p>I <i>do</i> strive to write functions that are as short as is reasonable, and I <i>do</i> lift single-use code blocks out into their own functions when doing so improves clarity. However, I&#x27;m neither an English 101 student, nor a newspaper journalist: I don&#x27;t stress about whether my work meets some arbitrary length criteria. :)