Zack Tollman

A Fresher Cache adds an admin bar menu that gives easy access to functions that refresh (i.e, regenerate or invalidate) 
cached items. Out of the box, the plugin provides easy access to refresh items that WordPress Core caches; however, the true 
power of the plugin is its API that allows developers to easily add items to the menu that initiate custom functions that 
refresh cached items.
For instance, imagine that you wrote a function called “my_update_all_term_caches” that loops through all of the terms 
in your WordPress install and updates the cache for each item. You can add this function to the “Freshen” admin bar 
menu with the following API call:
<pre><code>function my_update_all_term_caches_menu_item() {
 $args = array(
 'id' => 'my-update-all-term-caches',
 'title' => 'Update Term Cache',
 'function' => 'my_update_all_term_caches'
 );

 afc_add_item( $args );
}
add_action( 'init', 'my_update_all_term_caches_menu_item' );
</code></pre>
This code will generate a menu item labelled “Update Term Cache” that creates a link that will run the function defined 
in the “function” key of the $args array (in this case, my_update_all_term_caches()).
The primary purpose of this plugin is to provide an easy tool for developers to refresh cached items when developing new 
features. Additionally, it can serve as a convenient tool for users to be able to update cached items when needed.
Note that this is not merely a wrapper for the admin bar API. Rather, it allows you to add items to the admin bar and provides 
all of the necessary coding that will link a callback function to a menu item. You can think of it as an extension of 
the admin bar that adds a very specific functionality. The plugin also uses the admin bar as intended and only adds a 
few extra arguments that support the functionality of this plugin.
A more complete tutorial that describes the full functionality of the plugin can be read at 
<a href="http://tollmanz.com/a-fresher-cache-announcement/" title="A Fresher Cache Announcement" rel="nofollow ugc">tollmanz.com</a>.

A Fresher Cache

Get a fresher cache with a dash of "A Fresher Cache" for absolutely no cash.

Jeremy Saxey

Easily hide or show the front-end WordPress Admin Toolbar with a click of a button. The plugin adds a special button to the right side of the WordPress Admin Toolbar that only displays when you are outside the admin area of WordPress on the front-end. Clicking it will make the admin bar slide off the page to the top left corner, leaving only the hide/show button visible. Clicking the button again will restore the Toolbar to its original position. The shown/hidden position is remembered between page visits so that it can be kept hidden away until you are ready to bring it back.
There are no options or configuration. Just install and activate the plugin. When you exit the admin area, you will see the button to the far right of the Toolbar.
I actually like the WordPress Toolbar. It’s a convenient way to go back and forth from the admin area to the public website. However, when I’m doing design modifications for a theme, the Toolbar can be visually distracting. I wanted a quick way to hide the WordPress Toolbar when needed, but otherwise keep it around. I tried several plugins but they didn’t work as I wanted or didn’t even work at all in some cases. So I decided to build my own.
<h4>Contributions Welcome</h4>
This plugin is on Github. <a href="https://github.com/jr00ck/hide-wp-toolbar" rel="nofollow ugc">Submit a pull request</a> if you’d like to contribute.

Hide WP Toolbar

I had tried several plugins that this was the one that has the toogle feature that I love

Unique

Easily hide or show the front-end WordPress Admin Toolbar with a click of a button.

A Fresher Cache vs Hide WP Toolbar