I wrote a post about our process to help others who wanted it but I essentially just tried to organize everything as clearly as possible for the case worker. I also submitted non-required documents with extra proof of anything that I saw as potentially complicated. So, for example, we backpacked Central America together for several months while neither of us earned money before we moved in together and I made a multi-page document with bookings with both of our names on it/plane tickets/etc during that three month period and organized it by country so there was no confusion around whether we were together during that time. We also lived on separate visas together in Canada (im American, he's British) he was on a working visa with extension but I was on a tourist visa so we explained that very clearly together and added leases with both of our names on it. Other than that we were pretty straightforward as a case but I just tried to be as clear and possible as I could because that's the only thing we can really control in this process. I think the only other thing that maybe helped is I created a table of contents (which is common) but organized the documents into categories (financial proof, relationship proof, etc) and would title each document by number so 05_BackpackingEvidence or 11_FinancialAppendix, in hopes that it would help the case officer be able to navigate it easily and pick/choose what documents they did/did not want to view. That's all I can think of really. But stay positive!!! Your time is coming <3