Multisite Toolbar Additions is a powerful, light weight WordPress plugin that simply adds some very useful admin links in toolbar. It also provides support for various popular third party plugins listed in WP plugin’s page. With this plugin you get quick links to visit admin pages easily. For example: you can access the ‘Nav Menu’ Settings of a sub site/blog using your admin bar from frontend or backend of any subsite.
Fluency Admin give your WordPress admin area (dashboard) a new style and some nice features. So if you are tired from default WordPress dashboard’s look then switch to fluency.