Immigration Site

I have a couple questions just to be clear before I mail my applications.

1) When submitting documents to the USCIS, do I submit copies or originals?

2) I-864, do I only copy the federal tax returns, or federal and state?

3) How many of our wedding pictures do I need to include? And passport pictures?
(Im submitting I-130, I-485, I-765 and I-131)

Thanks!

1. You should submit photocopies for all documents except original forms, photograph and fees- paycheck.
2. You need copy of federal return only.
3. You are not require to submit wedding photos with I485, you can bring these in interview.

Thank you!
~AbcdAmerica