Joli Table Of Contents provides multiple widgets on top of the basic table of contents : Floating TOC  Slide-Out TOC Progress bar Fixed Sidebar TOC Also, you can customize the way your TOCs look on a per post, or per post type basis (you can have whole different settings per post type). This gives you a lot of flexibility.Moreover, Joli TOC has been designed with extreme customization in mind. It comes with plenty of filter & action hooks that let you have full control over the way your TOC will look and behave !