Yes Jake, I know there's never going to anywhere near a definitive list.
Even 3 couples living in the same town will have 3 different 'costs-of-living', but for me anyway it's a good exercise in thinking through the possibilities.
Whatever the basic cost for a simple life happens to be, I will always be making regular spends on travel and adventure.
Besides which we have family spread from Laoag to Davao and many points between.
It's all good fun as long as it's made clear it's just a general information.
Also help to think about just all those things that go to comprise our day-to-day spending budget