-Bring your home country ID and a photocopy of it--this was not on any list of documents we saw but was required (ex. US driver's license)
-They did not ask us for a utility bill (but we brought one anyway and would recommend just in case!)
-For anyone with long hair, have your hair up--they had spare ponytails to tie hair back for the photos they take and asked that I put my hair in a ponytail.
-There was a photocopy stand across the street in case you need to copy or print anything and the owner was extremely helpful and friendly! The Interpol workers were also very kind and helpful.