One main pillar of my planning system is my goals planner. I use an A5 Filofax Domino in Marine blue at the moment. This planner also houses my finance section where I track my budget and spending for my household, personal, and business expenses.
My planning process usually starts in this planner, before continuing on in my personal wide planner.
As you can see, this planner is more functional and less decorated at the moment but I am sure this will change in time as with all my other planners.