I date all my files. filename-yyyy-mm-dd-n.xlsx I don't worry about anything beyond that. The file system manages snapshots without my attention, messy so

I date all my files. filename-yyyy-mm-dd-n.xlsx I don't worry about anything beyond that. The file system manages snapshots without my attention, messy software like Box or SharePoint can manage versioning if files need to live there, the OS can try to manage metadata, all of that is separate from my needs: fast easy access to old/new versions of documents. When I'm working on something and I feel like I'm about to make major changes, I save with today's date. If I want to know what I presented to people at a specific meeting, I look up the meeting date. If I want to branch or add a version or tag (final_FINAL_V2) then I'll rename the file, but I always update the date.