I collect Great Britain along with British Colonies, Empire and Commonwealth. With the exception of the Machins, all are Pre - QEII. I have the Empire, colonies and commonwealth stuff in separate binders labeled "British Empire" Due to the amount of pages for each separate colony, territory and what have you, I needed to split it up into 6 binders for that. For just Great Britain, it's all in one binder. Pre - QEII except for machins. I'm using Steiner pages for everything.
As for albums, I have an older (1980 ish) Gibbons 'Standard' (that's what the title page said) set of 4 ring pages and binder.
One of the advantages / challenges with that album was that it came printed with Gibbons catalogue numbers. Nice when I'm matching up with my Concise GB catalogue, but a challenge since I'm mainly buying in the Scott centric US.
When I found I was missing spaces for varieties, I have used AlbumEasy to build replacement or fill in pages that I print on heavy cotton bond paper.
oldmanriver, this is similar to my collecting interest and organization but I go to 1980 at times. I use Steiner as a basis with everything in Vario G binders. I have the countries sorted alphabetically for now but plan to group by region (British Africa, etc).
I collect GB until 2010 (where my Steiner pages end). I concentrate on pre-1970. I do collect Machins separately, but they are such a rabbit hole that I don't do it actively. I think GB issues are very attractive stamps, with a nod to history, but I have no desire to collect, like the US, labels like Freddie Mercury and Bugs Bunny (both of whom, I really enjoy) PP