You don't necessarily have to build your own workflow around org-mode. If it works fine for you as it is, then that's OK. It is a fine markup format in itself. Finer than some others. Emacs has exceptional support for org-mode of course, which allows for good navigation within a document and things like folding headings and showing an overview.
If you want to go further, you can use things like including other org-mode documents at specific heading levels or even write thesis in it, falling back to latex when needed. There is also a citation format now in org-mode.
Another thing you could explore is org-babel. Try out the ideas of literate programming. A bit of "write once, export to other formats" like HTML make a blog post or similar.
I also use org-mode for some spreadsheet capabilities. Not really huge spreadsheets, but usable. For example I have working hours time tracking in org-mode using a table with formulas (a spreadsheet). Or I have a repository with recipes, where I can let it calculate amounts of ingredients, depending on the number of people who want to eat.
If you want to go further, you can use things like including other org-mode documents at specific heading levels or even write thesis in it, falling back to latex when needed. There is also a citation format now in org-mode.
Another thing you could explore is org-babel. Try out the ideas of literate programming. A bit of "write once, export to other formats" like HTML make a blog post or similar.
I also use org-mode for some spreadsheet capabilities. Not really huge spreadsheets, but usable. For example I have working hours time tracking in org-mode using a table with formulas (a spreadsheet). Or I have a repository with recipes, where I can let it calculate amounts of ingredients, depending on the number of people who want to eat.