Extra letter of recommendation

<p>Hello,
My friend is writing me an extra letter of rec for Duke. And I was wondering about the envelope...
Should she write my name/common app id on it?</p>

<p>And if yes, should she put it under the return address or where?</p>

<p>THANKS!</p>

<p>The envelope doesn’t matter as long at it’s correctly addressed-just make sure it’s at the top of the letter.</p>