They only civilian clothes I had on I-Day were the clothes I was wearing and 1 extra t-shirt because I came out the day before I-Day and stayed with a host family through the Bed & Breakfast program. You really won't need any for a while, so you can always have your parents' bring them if they come out for Parents' Weekend or you can bring them back after Thanksgiving or Christmas break. My parents' mailed me a few things that I really wanted after A-Day like my Converse and then brought me my snowboard and snowboard gear (jacket, pants, boots, etc.) when they came for Parents' Weekend.