We just got our first FLR and entry clearance approved and supporting docs returned last week.
Just to clarify, so that people don't get confused... you have not applied for an FLR(M) visa because FLR(M) is an in-country visa extension for people who already live in the UK... FLR is Further Leave to Remain in the UK.
What you have applied for and been granted is a spousal visa... which is Leave to Enter the UK, not FLR.
Spousal visa- can only be applied for outside the UK
- valid 33 months
- costs £956 plus £600 NHS levy
- gives permission to enter the UK as the spouse of a UK citizen
- the US citizen's income cannot be used to meet the financial requirement
FLR(M) visa- can only be applied for from inside the UK
- valid 30 months
- costs £649 plus £500 NHS levy
- extension of current visa so you can continue to live in the UK
- the US citizen's income can be used to meet the financial requirement
We packaged everything in a plastic binder that comes with clear plastic wallets in, and made copies of everything that we wanted back (almost everything), but it doesn't look like they've kept anything! They didn't even keep the letters that were addressed to them!
TBH it doesn't even look like they took pages out, there's no creases or anything... Maybe they just took copies of the bits they wanted 'through' the plastic wallets?
For spousal visas, we advise not to package anything in folders or plastic wallets because it can make things awkward for the ECO.
The best thing to do is organise everything in clear piles and hold together with either rubber bands or paper clips/crocodile clips