The Spreadsheet of Life (or SoL for short) is the backbone of my finances, holding data for helping me with all my financial decisions.
It is an ever expanding Google Sheets file that I use to take snapshots of my daily, weekly and monthly finances which is then summarised to me each day through automated emails, run through Google Apps Script.
SoL also contains health data such as distance traveled, steps and fluid intake which I send each evening from my phone to the file via Apple Shortcuts.