<p>Can we just put on a stamp and drop it off at the post office? Or do we need to put it in an envelope, address it, and stamp that?</p>
<p>I put it in an envelope.</p>
<p>Thanks a lot.</p>
<p>I stuck a stamp on my card and mailed it off like that...I hope they get it.</p>
<p>I just e-mailed them, saying thank you and stuff and I was told by doing that I am accepting my spot! and that is it! quick and easy</p>