wpxpertise

This plugin keeps the HTML of your navigation menu links clean by removing extraneous CSS classes from the each list item. Those classes are simply replaced by the target page’s slug (e.g. class=”home”).
The current page’s list item is given an additional “current-menu-item” so it can be highlighted. It that page is a submenu item, then its parent is is also given an additional “current-menu-parent” class you can use in your theme’s style to highlight it as well.
In case AJAX is used to download the selected page, your JavaScript code can read the “data-id” or “data-slug” attribute to fetch that record from the server.
<h3>Settings</h3>
Once the plugin is active, no additional settings needed.

WPXP Clean Navigation Links

This plugin keeps the HTML of your navigation menu links clean by removing extraneous CSS classes from the each list item.

Elias Lackner

Upload Directory Cleaner scans through your WordPress upload directory searching for all files not being registered in your Media Library. After the scan, choose which files to delete from the list showing all unregistered files.
Features:
<ul>
<li>Archive Directory</li>
<li>Scan Directory (Settings: Exclude top-level directories and files from the scan or add custom ignore strings.)</li>
<li>Delete Files (Settings: Keep Thumbnails, Delete Empty Directories)</li>
</ul>

Upload Directory Cleaner

The UDC plugin allows you to scan and delete all unregistered files from your Wordpress upload directory.

WPXP Clean Navigation Links vs Upload Directory Cleaner