So, when one mails items such as Letters of Rec., envelopes, and forms, can they just throw it all into a 9x12 envelope, stick a stamp on it, and it will get there? I'm having to get a LoR from one of my instructors who is currently living in Columbus, Indiana, and I'm in Columbus, OH. I'm going to send her 5 LoR forms and envelopes. can i just put it in a envelope and put one stamp on it and it'll get there? Dumb question, I know.