How many (I know some have) AFFers have actually had a hard look at how much they have spent per year over (for example) the last 5 years? If you were asked what your 5 biggest expenses each year had been & how much (to the nearest $'000) would you know?
Most people (surveys continue to show) spend multiples the amount of time planning their holidays then managing their finances.
Things change once you fully retire, and somewhat when you partially retire.
For example the need for multiple vehicles can disappear for 50 or more weeks per year and it becomes significantly cheaper (savings on insurance alone) covers rental cost for that 1 or 2 weeks per year when an extra vehicle comes in handy.
For some, dry cleaning costs nearly disappear, distances driven due to daily commuting ceasing plummet and all associated costs accordingly even if you don't downsize your vehicle fleet. Similarly, travel costs can also reduce substantially (when points are not available) as you are no longer locked into the old restrictions of when you could organise annual leave for. Being able to take advantage of super cheap airfares at the last minute can generate meaningful savings (provided you've kept your passport current, or with at least more than 6 months to expiry).
The tax free nature of super (for most) makes a massive difference when pre-tax & post-tax are the same for super (now pension) income.
Simplest way to get rough idea of how much spent each year. Tax return net income less change in bank balances and less any net investments made. Then, as all diehard AFFers do, check all your CC spending perhaps using a simple spreadsheet with columns for say, house/rent expenses, vehicle/transport, utilities, health, clothing, travel, general living (food, hair cuts, etc), entertainment, furniture/tech.
Divide it up however best suits your lifestyle. If pedantic (detail oriented) then out the CC date spent per item - that way you can resort the spreadsheet in different ways such as by category, amount, timing etc.
Remember: Proper Planning Prevents Poor Performance or "you get out of life what you put into it".