It is a bit odd, but I can't come up with much evidence that my wife and I have been living together (for the past 7 years!). We never get mail where we live in Russia - the only thing we have is the registrations in our passports that list our address as the same. I could get letters that we live together I suppose, and translate, and notarize etc. But there is a list of in the checklist of what to submit to prove cohabitation, and I don't have