title: Hidden features of mod_rewrite
body: <p>There seem to be a decent number of <code>mod_rewrite</code> threads floating around lately with a bit of confusion over how certain aspects of it work. As a result I've compiled a few notes on common functionality, and perhaps a few annoying nuances.</p>
  
  <p>What other features / common issues have you run across using <code>mod_rewrite</code>?</p>