ok, a stupid question, how do I deal with non-standard document sizes? I've got nice looking diploma from my university, however it's huge - 14"x17" and it was sent to me in a mailing tube. I don't want to fold it and I don't think mailing it separately is a good idea. I certainly can find a large size envelope to fit the diploma in but the question is how are they going to send it back to me? I'm not very familiar with various mailing options so may be there is an easy solution?