Sorry, I've been very busy. This is my response to Talbot:
I was asked to bring:
The letter indicating the date of my interview;
Green Card;
Evidence of Selective Service Registration;
Passport and/or any other document used in connection with any entries into USA.
Also bring any of these docs if applying on the basis of being the spouse of a US citizen:
Marriage certificate;
Proof of death or divorce for each prior marriage of yourself or spouse;
spouse's birth or naturalization certificate or certificate of citizenship;
Bring this document if applying as a member of the USA Armed Forces:
Discharge certificate, or form DD214
Now, to answer maheshgajanan's question:
I'll be bringing the interview letter, greencard, evidence of selective service registration (because I have one, and applied for one when I was 18-25), and my (Mexican) passport (even though it was never marked when I made entries into United States). I might also bring college transcripts to show that I'm trying to make something of myself (elementary school teacher). I might even bring pictures of the children I work with to show what I've been doing in the past five years (I work as a teaching assistant).
But yeah, that might be overkill, so I won't sweat if I fail to bring these two items. Heck, I might even throw in some letters of recommendation I asked some teachers at work to write for me a long time ago about why I should be admitted into some teaching credential program.
no Selective service papers
Were you in America between the ages of 18 and 25? I registered for the selective service when I was 18, even though I was still an undocumented immigrant. It showed good intentions on my part, if nothing more.