Sone

You're welcome! Have a great trip!

Just your card and passport.
BTW, the fact that it is a "combo card" is not a special feature for reentry. You are entering on AP. It happens to be housed on a combo card. That's all.

It's okay, not the end of the world. A lot of people get RFEs and live to tell about them

Only for the intending immigrant.

no not for the us citizen, the biometrics is for the beneficiary spouse

Like everyone else answered its only for the beneficiary - in this case you. Only time your USC spouse will need to put in an appearance is during your marriage interview. Good luck!

Yeah. Monday's not so great as everyone who received their letter on Friday and Saturday is trying to get a walk in.
Appointments are on the hour (generally) and they do admin stuff from the end of appointments until the next hour. Maybe try at 10.20 or 11.20?

1) H-1B
2) H-1B
3) Yes

5. I-693 not I-864 obviously.

1. For showing proof of valid marriage, How many months’ bank statements are required? None but highly recommended. the more you have the better. Is one month fine? Yes. Is it a problem if one of
the old statements shows a different address? No.
2. Can I show my income in support of affidavit. My wife used to work till last year, but now she is a full time student. Yes. Message me if you need help.
3. Do we need to submit documents from my employer stating my salary or is it enough to provide W2 forms and a letter from my employer stating that I am an employee of the company? It's enough without the salary. Add 6 paystubs with that.
4. For proof of valid marriage, is it ok to have just 1 sworn affidavit, 1 bank statements each for 4 different accounts,1 credit card statement and 1 void check leaf for yet another bank account. I also have a common health insurance card, auto insurance. She being listed as my emergency contact at my work place. A summary page from work which shows her as my beneficiary, Cellphone bill with her and my phone number. Also I have a online Air ticket confirmation mail for a vacation we had together with both our names on it. Are these proofs enough. Yes. Perfect. The more the better. Add pictures with descriptions on the back and dates.
5. I don’t have any proofs for any vaccination as my vaccines were administered in India. I don’t think there is any way to get a proof for this. I might have a proof for the Flu shot I have taken. Will I have to get all the vaccinations again. Yes. You need to download and add the I-864 form and then go to a "civil surgeon" and get all of this done here in the U.S. go to the uscis website to find a civil surgeon.
6. Is there a premium processing to get things going faster? No.
7. Do I need separate checks for each fees or just one check. One check for I-130, one check for I-485($1070 this includes biometrics)

http://www.visajourney.com/forums/topic/422865-i-485-support-of-affidavit/page__p__6118929__fromsearch__1#entry6118929 is a post I made earlier today on precisely this subject.

Type a.
Not a problem.

Are you asking about the "Which USCIS Office?" question at the top of the right side? That is part of Question 11 "Have you ever before applied for employment authorization from USCIS?", and only if you check Yes do you complete the information below. In that case, it is asking the USCIS office where you applied for your previous EAD.