Tags without folders
Folders force a decision at the worst moment: while you are trying to capture a thought. Where does this belong? Often it belongs in two places.
Write it where it appears
In Axsync you type #idea inside the note, and that is the whole workflow. The sidebar collects every tag, and clicking one filters the list.
One note, many contexts
A meeting note can be #work and #hiring at the same time. Search and tags together get you back to it faster than a folder tree.