I recently had an issue with a Wordpress site setup like no other that I've seen. I came in after the Wordpress site was purchased by a client. They were interested in exporting URLs from pages, posts, categories, tags, and for other miscellaneious sections that were added to the site.
Normally, it is an easy enough task from right inside Wordpress under the Tools settings > Export. The output is an XML file, which can be a pain to convert and also gives data that is useless when all you want are the URLs; hence a major cleanup.
Now, you can also use a plugin. Easy, right? On this Wordpress site: wrong. The server was at its max capacity or data limit, and won't allow the directory for the new plugin. (Good thing the owner wants to move it) So, I had to think out of the box.
Most sites have a sitemap.xml. If you don't, you should. It is one of those things that helps SEO.
Sometimes it takes just a little bit of ingenuity to get a problem solved! Piece of cake!