I'm kind of jumping in on this thread.....jaxieangel seems like they could use (as could I....just over a month until I submit ILR....entered 15 April 2015) a simple bullet list of all the things that need to be covered. It isn't the same for everybody though. I will be covering my financial section with just savings for instance. I have yet to go through the online application, but if it is saved for a couple of months I might start it in a couple of weeks. Maybe there is already a simple bullet list on the site here somewhere.
It's going to be very similar to what you submitted for your FLR(M) with the addition of your life in the UK test pass.
Financial-For your savings you just need to provide a full 6 months worth of statements, originals or stamped on every page by the bank. I'd send 7 months worth to be on the safe side. You also need a declaration of the source of savings.
Accommodation- Your land registry document and a recent mortgage statement or the deeds to the property. You may be asked for a council tax bill but that seems to many be asked for if the applicant is renting. It's a good thing to use as one of your pieces of correspondence though so I'd include it anyway.
Relationship.- Marriage and any divorce certificates.
Six jointly or up to twelve individually (or a combination of the two) addressed pieces of official mail covering the last 2.5 years and from at least 3 different sources.
Then just your passports, BRP etc. No IHS payment this time!