I kept running into the same dumb problem.
I’d write a note about an Excel file in OneNote, something about a PDF in Notepad, and a reminder for a project somewhere else entirely.
A week later I’d remember the note existed, but not where I put it.
So I built ClingNote.
The basic idea is simple: notes can attach to the files and work they belong to.
Open the file again later and the note comes back with it. Switch to something else and ClingNote switches context too.
It’s local-first, Windows-only, and it also has regular notes, rich text/Markdown, search, multiple notes per file, pop-out notes, etc.
Available on Clingnote.com and the Microsoft Store