<p>If my teacher rec arrives at the college before my application, will they just create a new folder for me. No big deal?</p>
<p>Correct; no big deal.</p>
<p>That's right, although technically they don't create a folder - they simply place them in a big pile to be sorted through later. Keep in mind that certain schools have pre-apps which need to be sent in ahead of time (Georgetown comes to mind: they have a Personal Data Form which I believe must be filled out before your recs come in).</p>