The way my brain creates the logic for Evernote is by Notebooks, and creating notebooks within notebooks, as sub-folders is something I've wanted for a long time. It seems maybe there was nestable notebooks once upon a time?? It would be fantastic as a Realtor to have the following hierarchy available to me:
REAL ESTATE (Top level stack name)
As you can see, this method requires the ability to have nesting notebooks. Pleeeeeaaaase??