How is it that a thread created in 2008 with 34 pages of responses has yet to actually be acted on by Evernote? It's one my biggest frustrations that I'm limited in the number of folders I can categorize with. Tags are great for linking between notebooks, but they are definitely not notebooks themselves. For instance, I should have a folder with something like:
Research
Book Highlights
Book Title 1
Book Title 2
Book Title 3
Personal Thoughts
Definitions
Webclippings
Political
Scientific
Personal
Notes
Christmas Presents
House Projects
Statements
Bank
Work . . . [you get the idea]
And then my tags become useful as a way of connecting all of the notes together. This way, I'm not forced to have a massive list of stacks to choose from when I'm trying to find that on document or note. Ooooo we should call the next hierarchy "Bookshelf"! In my example, "Research" is one bookshelf with "Book Highlights" as a stack, "Book Title 1" as a notebook, etc.