A long time ago, a question was asked about listing draft posts. I quite liked the idea, and adapted the code that mdawaffe provided into my first feeble attempt at a plugin.
I've now revisited the plugin, fitted it with an options page, and released it officially. List Draft Posts will provide a list of the titles of all posts saved as drafts. This will probably be quite useless to most people, but if you'd like to have a kind of teaser of forthcoming attractions in your sidebar, or a reminder for authors to finish those posts they started way back when, you might find it of some use.