Besides sending tax transcripts/returns and children's birth certificates (we have 2 children), how much documentation should I send for my application that's based on 3 years of marriage? I have TONS of stuff...mortgage statements, bank accounts, life insurance, health insurance, etc etc etc.

Do I mail copies of all of these in? A select few? Or should I just bring all the documentation to the interview and only mail in the tax transcripts/returns and children's birth certificates?

Thanks!

I went to a naturalization seminar last saturday and there were immigration lawyers there available, so I checked with them. Things needed are:
-both sides of green card
-copy of marriage cert
-copy of spouse's nat cert or passport

on the safe side i'll mail along:
-copy of the past 3 years' tax transcript.
-copy of your home mortgage or home title with both your names on it (they said owning a home together is as significant as having a child together)

All we sent were copies of the green card, copies of my passport (I'm the USC), copy of our marriage cert, and 3 years tax transcripts. If they want anything else, G can take it to the interview (we do have a house together, joint bank accounts, beneficiaries of life insurance, etc.).

Birth certificates are also required if you have kids, which you know. We don't have any, though.

Thanks for the input! I am ready to mail today! It is snowy and cold but I'll make it to the post office