Aaron T. Grogg

This plug-in limits the classes WordPress added to navigation menus to only those desired by the Theme owner, 
adds a unique ID to each <code>li</code> and removes any empty <code>class</code> attributes.
More about this plug-in can be found at: 
http://aarontgrogg.com/2011/09/28/wordpress-plug-in-navigation-menu-ids-classes/
Please let me know if you have any questions/suggestions/thoughts,
Atg

Navigation Menu IDs & Classes

At least some aspect of this plugin seems like it should be available in WordPress core. 
I understand the rationale for menu items having menu-item-ID, but it's pretty practical for them to have the slug in there, as this plugin provides.
Suggestion for plugin feature - offer option for slug prefix.
Like if I have a menu item "updates" I may use the class "updates" elsewhere, but class "menu-item-updates" would target the menu-item for sure. Of course I can currently use double selectors.



1 for inclusion in core

To reduce the extraneous WordPress classes and add unique IDs to navigation menus.

shawfactor

This plugin makes it easy to create a wiki like TOC (table of contents) in your posts or pages using shortcode, no linking or creating anchor is needed.
Unlike other plugins this is 100% semantic, ie drop the comment string: <code></code>.
Into your content body and the plugin will do the rest ie it will generate a table of contents based on the h2 and h3 tags in the content body.
If the comment is not included the table of contents is not generated.
<h4>Features:</h4>

LH Table of Contents

create a wiki like TOC (table of contents) in your posts or pages using shortcode.

Navigation Menu IDs & Classes vs LH Table of Contents