I gained a new follower yesterday: @miraclebind. Usually my followers are fellow pen and paper enthusiasts, rather than products (that is not to say the people behind the products are not pen and paper enthusiasts because they usually are).
Miraclebind are planners where you can remove, reposition and reinsert pages and these are definitely going on my #wishlist. With this you could start the calendar year when you wanted and have a full notebook with only the information you need.
They also offer a planner called “my home project” which includes storage pockets, index sheets, project planning steps, conversion charts, calendars, monthly planners, telephone and addresses section and cost analysis and well as regular lined pages, for you to order, sort and organise as you wish. Sounds like a fab little product.
Unfortunately miracle bind home project planner appears to only be available in Canada and the US, but we do have some uk stockists of the basic miraclebind notebooks (and thankfully the refills and hole punch) like Rymans.