i bring my leather portfolio w/notebook and resume/cv in it. couple pens.
as far as application materials etc. i made a separate interview prep portfolio, and i add to it with each specific school i interview at. i don't bring it with me to my interviews, but i use it to prepare its just a few pages, but it has a copy of my entire aacomas app, copies of the secondary essays/info i sent to each specific school so i know exactly what i have already said and what i want to stress. it also has major notes about osteopathic medicine, little blurbs about different OMM techniques i'm familiar with like soft tissue, counter-strain, myofacial release, etc. my cv, and specific questions/feedback from the interview feedback threads from each specific school, also questions i want to ask there, and finally my game plan/flow for tackling big questions/issues i know i will be asked. i mean these aren't canned answers, and i wouldn't reccommend doing that for anyone but i have a lot of experience public speaking/extemp speaking and i just like to have a few notes, an outline if you will, to make sure i hit all the stuff i want to, sometimes its helpful to have your flow down, and practice some good transitions. its not a speech or anything but it helps your delivery and presentation to know your stuff well. but again, all this is prep, and it may sound like a lot, but it only takes a few minutes to put it together, and a few minutes to go through it all. again, i don't actually take any of this with me to the interview though.