<p>I actually contacted the colleges and they said it should be OK to send the recommendations by paper sometime during the summer, so I’ll do that, and try and send the supplements etc. by mail shortly before I submit the Common App late this autumn (plus request the score reports then, so the admissions office doesn’t miss anything like you said). I don’t think I need to submit the mid-term grades, since I’m coming from a non-US based school system, but I’ll double-check it anyway. </p>
<p>Thank you very much for your help :)</p>