I married a much younger man from Tanzania, who is in the U.S. on a student visa. Now I’m starting the process of petitioning for him to get a green card. Our marriage is the real thing, but I have a feeling that proving this to the satisfaction of USCIS is going to be tough. We want to do everything we can to show our shared life together when we get to our adjustment of status interview. We’d really like to keep our finances (credit cards, bank accounts) separate, though – I’m a bit of a shopaholic and he is very careful with money, and he says he’ll be happier not knowing what I’m spending money on. Would it help if we just opened a small joint account?