I had large collection of saved web pages I wanted to convert to ebook, and did not feel like manually creating a table of contents, so I went searching.
Voila! I found
Sitemap Creator, intended to create a list of links to every file in a folder. Even has an option to extract the title from the html instead of just using the filename.
Since I'm sure I'm not the only person converting html to ebooks (and lazy about it), I thought I'd share. It's not perfect, but it's still a heck of a lot easier than manually typing in the whole thing.