Hi! I used normal size black bag, had a map with everything in my hands. Just put everything neccesary inside a smaller bag and all the documents in a neat map or if you have a kind of "file bag", where you can put all the documents and something else like lipstick and stuff inside it is also OK, but I didn't have one.
Don't worry too much, it's more important how you act and stuff and if you are good prepared with photos and other documents. Just look nice, everything in order and smile
