My wife and I use WordPress for our blogs. We also both have a habit of changing our post titles a few times before settling on what we actually want, which causes WordPress to set the post slug to our original post title instead of the latest post title. To fix this, I wrote a small plugin that automatically updates your slug to match your latest title whenever you publish a post or update a post. Maybe there is already something out there that does this, but I couldn’t find something.
Download it here or by searching for “CW Post Slugs” from your WordPress dashboard.