I did it all. Put her on life ins policies, utility bills,holiday greeting cards addressed to both of us. Ids and licenses with same address, pictures of us on vacation and with each other's families. Use your imagination. Like I said it's a game, play it. Once you are done with them you can go back to your old ways. For the record a little on our background. Wife was a 24 year overstay and they had us set up for a stokes interview. Once the officer seen how prepared we were he thanked me for making this easy for him and my wife and him came out laughing and joking. Card produced 3 hours later. Play the game and give them what they want. Put some effort into it and take it seriously. 4 years almost to the day to citizenship.