Folders are not a filing system. They are a hiding system.
If you cannot find a file without remembering exactly where you put it, your structure is working against you. This guide explains metadata in plain English, shows you when folders are fine and when they are making things worse, and walks you through building the three core columns that make SharePoint — and Copilot — actually work the way they are supposed to.
This is not a technical guide. It is a thinking guide.