<p>are they due by jan. 1st, or is there a little leeway, since its not required?
thanks</p>
<p>IIRC it says by the end of january.</p>
<p>You want to get supplemental material in as early as possible, but by the end of January will be fine. (It should be in by the time the admissions officers go into selection.)</p>
<p>If you're sending in supplemental art or music, which is sent to faculty for review, I would send it in absolutely as early as possible out of respect for the faculty members who are reviewing it.</p>