Tag or Notebook organizing System?

Great blog post at harmonenterprises blog by Stacey Harmon about tagging or using stacked notebooks to organize in Evernote.  I use both.  I have a notebook for each project or main subject and then within that notebook are stacked notebooks to break it down.

I use an inbox notebook where every note goes that comes into Evernote; from there I review and sort each note.

My notebooks are always changing depending on what I am working on.  When I start a project it gets a notebook stack and when I finish the project I keep what I need to keep.  Those notes go to a filing cabinet notebook and get tagged with relevant notes.  I try to make sure the notes have informational titles so it is easier to search for a note if I need to.

 About twice a year I go through all of my notes one by one and delete the ones that are not relevant.  I did not think I would be deleting as many as I do but a lot of them I do not need to keep.

Be sure to check out Stacey Harmon's post mentioned above; there is a  lot of great information about tagging and notebooks.

How do you organize your notes?