Interesting thread. As a VFR only pilot who’s so far only flown locally (basically “burger-runs”, though I never eat anything on these), my preparations are rather simple (I despise the word “workflow” because it is often used by self-important “business types” in Germany in its original english, without the proper context).
A month before the flight
I identify suitable dates for flying in that month by finding a date that:
These rare dates occur about once every 2 or 3 month.
A week before the flight
If the conditions above are still met and my wife doesn’t veto me going to fly for other reasons, I reserve the plane with the rental company. The company I currently use has had 100% availability on my chosen dates so far, luckily.
Three days before the flight
I check the weather forecast text on the DWD app, to get an idea if VFR flying will be possible on the chosen day
The evening before the flight
I check the weather again and read the NOTAMs if I feel like it
Day of the flight
Peter, my workflow is largely irrelevant irrelevant to those on here as I fly a jet.
The day before
File flight plan, check NOTAMS
The day
Check weather
Check W&B/Performance