Before we start our own thread in the visa's section where we'll no doubt ask the same questions everyone else is I was just wondering is there a particular thread where the process/timeline is laid out in a really straightforward manner where we can just start ticking things off or seeing which other ducks we need to get in a row? I know, I'm just being lazy, I'm sure I'll find something if I spend a bit of time searching the forums.
Unfortunately, there is not, really... everybody's situation is unique, so the evidence you'll require is going to be fairly specific to your application.
But in general, there are three sections of evidence you must satisfy (along with the regular 'administrative' stuff like the application form, shipping label, priority receipt if using, passport(s), etc.):
1. Financial requirement:
Category A, if the sponsor (UK spouse/partner) has been working in the UK for at least six months in the same job and earning at least £18600. You'll need to provide six FULL months of bank statements, six FULL months of payslips, a letter from your employer confirming your employment status, and optionally your employment contract and your latest P60.
Category B, if the sponsor has been in their current job for less than six months, but has earned at least £18600 in the last 12 months and will be earning at least £18600 going forward. You will need to provide twelve FULL months of bank statements, twelve FULL months of payslips, letter from current employment confirming employment status, optionally the current employment contract and latest P60.
If you don't meet either of these categories, there are others... the easiest (least amount of paperwork involved) is cash savings (must have held at least £62500 for at least six FULL months), and the most difficult is for self-employed/business owners.
2. Accommodation:
Just need the tenancy agreement and permission for the applicant to stay there if renting, or a copy of the Land Registry document and optionally the latest mortgage statement if you own your home
3. Proof of relationship:
I'll leave this one for the others to detail, but you will need to document all the time you've lived together as a married couple, and show proof of how you kept in touch when you didn't live together.
The timeline is:
Determine which financial category you will apply under.
Gather your evidence.
Complete the online application and book biometrics (usually within a few days of the online application).
Attend biometrics.
Within 5 days of attending biometrics, get the full and complete application packet into the post (this is why you gather everything before you apply!).
Wait.
Wait some more.
Keep on waiting.
Gnash teeth.
Wait a bit longer.
Pull out your hair.
Wait.
Celebrate in a flood of emotions!