Hi Karlita,
me too, I had made a nice folder with index, all organized, etc... and then I went there and it was such a mess!
And I was applying for unmarried partner visa, so I even had to prove the 2 year cohabitation. I had all organized in chronological order, and then with this small space we have, I had to remove all documents from folder. And the woman was not in a good mood, but I was like: "you want to see all documents, here they are" And gave EVERYTHING!!!!
Just leave all these papers in plastic folders, and just keep it organized for yourself, I mean, when she asks proof of funds, then you know where you have all the bank statements, etc to give. Then they ask proof of relationship, then you have your marriage certificate and maybe photos of the marriage, etc... Just organize it to yourself, and then in the rush it's easier to give it to them.
But other than that, it is still a mess, I agree