I'm not trying to navigate to the next post within a category, but to put previous category and next category under the category description on its archive page and navigate between archive pages.
I've searched, but I'm not sure this is even possible without hardcoding categories, and I don't want to do that. I'd like to dynamically link.
Not asking anyone to write any code for me, just asking does this sound like a good starting direction for what I need to look at doing:
Build a get_next_category function by using the wp_list_categories, then pulling the adjacent from that list and turning it into a link?
In short, I want a category archive page to show a category title, description (know how to do both of those), then next and previous category links before it shows the posts. I am not creating a list of categories, just navigation links.
Hope that clarifies what I'm trying to do. Still searching codex and exchange.