Does it make sense to jQuery cache $(this)?
<p>I'm still learning about jQuery, but I have not been able to find a solid answer.  I know every time you use the jQuery selector <code>$(...)</code> there is a performance cost, but does <code>$(this)</code> have a significant cost where you should cache it before using it a lot?</p>

<pre><code>var $this = $(this);
</code></pre>
