So how did you start out in some of these spending areas and how did it play out over a number of years in RE?
We didn't get to do a lot of retirement budget planning since I was RIF'd at 58 yo without much notice and decided to call it "FIRE'd" instead of "fired" and never returned to work. (Nuttin', no consulting, part time, hobby income, nuttin".) That was 12 years ago. DW had already voluntarily retired at 55.
Trying to figure it out on the fly and without a lot of detailed records, we just looked at the gross amount we had been spending and, following Mr. Pareto's advise, looked at the major buckets which accounted for roughly 85% - 90%. Taxes, car and house amortization and upkeep, ongoing bills for insurance and utilities, etc., travel, entertainment and so forth.
DW was collecting a pension and I got a fairly generous severance, so we had some time to learn by trial and error. By far, our biggest concern was that we'd panic and cut back too much and later regret not doing age-appropriate things at the time.
Just when we thought we had things figured out, the Great Recession hit throwing us into another "now what?" period and much new head-scratching. Again, we we were concerned we'd over-compensate and not do things we wanted to do and which might not be available to us as we aged. We charged ahead with all plans despite a 30% drop in our FIRE portfolio.
I know I'm not really answering your question as you seem to be looking for a level of detail we never really tried to micro-manage. But, I just wanted to throw out......
1. Allow enough for the activities you really want to do early on and which might be less appealing or even impossible as you age.
2. Be flexible. Instead of fretting over a few hundred bux one way or the other in your clothing budget, for example, fret over how you would respond to the need to make a 30% budget cut or spend a windfall.
One of the biggest things we're learned in these 12 years of FIRE is to not procrastinate on desired activities (even when it borders on being imprudent) and to be flexible since things don't seem to go according to plan, at least not for us.