My ILR (5-year spouse route) has been granted and the forum has helped a lot through this process, so I thought I'd share my timeline and document list. Hope it'll be useful for you
Timeline
Online application submitted: 02/01/2019
Documents uploaded to UKVCS: 02/01/2019.
Home office confirmation email received: 03/01/2019.
BRP appointment (24 hour Super Priority Service): 05/01/2019
Visa decision email received: 07/01/2019 (Approved)
Visa decision letter received: 08/01/2019. Delivered through Royal Mail signed for.
BRP card received: Waiting
Document List
Mandatory Documents
My passport (First page)
Husband's passport (First page)
Signed Declaration by husband
Residence in the UK
Council tax statement x 1
Current BRP (both sites)
Tenancy Agreement (all pages, both me and my husband's names are on there)
Finances
Last 6 month's payslips from my company
Last 6 month's bank statement showing the salary payments on my bank account
Life Events
Marriage Certificate
Sponsors/Employment
P60 x 1
My work contract
Employer letter
Educational
Life in the UK test certificate
My degree from a UK university (proof for English)
Others
Not sure where to put the 6 correspondences, so I've uploaded them under this category. I spent a bit time preparing these, as I needed to make sure they spread relatively evenly over the last 2 years. The oldest letter is dated Oct 2016, and the latest Dec 2018. They are a mixture of bills and statements from 4-5 different sources.