Visa application requires 1cm of supporting documentation
You want to get married in the UK to a non-EU citizen? Then you're going to need a lot of documents.
My fiancée and I have gone through the application form, and created a spreadsheet listing all the supporting documentation required. I think I have about 25 documents to prepare, and Christina a similar number—whereby some documents are not in fact single documents, but tasks such as "all tax documents for the last year", or "all invoices"!
I've now prepared about 1cm of documentation.
(P.S. Thankfully we can both see and even edit the spreadsheet at the same time due to the great collaboration features in Google Spreadsheets!)