Mike

As a logged in user, you can already control the visibility of the WordPress Toolbar when modifying your profile with the ‘Show Toolbar when viewing site’ option. This plugin lets you manage that option while viewing the public part of the site without visiting your profile page saving you a few steps. A few steps over the course of a year can be a considerable saving.
To use, add the following to the end of your URL location:
<ul>
<li>?hidebar or ?nobar to hide the Toolbar</li>
<li>?showbar or ?yesbar to show the Toolbar</li>
</ul>
If you have a ? in the URL already, swap it with a &
This plugin differentiates itself by having a zero footprint. It does not leave any visible buttons, add any extra javascripts or CSS styles. It is also WordPress Network compatible – that is, you can enable it network wide.
Collaborate, participate, or fork this plugin on <a href="https://github.com/zedzedzed/toggle-toolbar" rel="nofollow ugc">Github</a>.

Toggle Toolbar

Easily toggle the WordPress Toolbar by adding commands to the end of your URL while logged in.

OTWthemes

It is easy to create all different kinds of Toggles for your WordPress site. Insert Toggles anywhere in your site – page/post editor, sidebars, template files. No coding is required. It is all done in a nice and easy interface.
Toggles Options
<ul>
<li>Toggle Title </li>
<li>Content</li>
<li>Opened/Closed </li>
<li>Font Icon</li>
<li>Icon URL</li>
<li>Custom CSS Class</li>
</ul>
Insert Toggles Anywhere in your site
Basically Toggles can be inserted anywhere in your site
<ul>
<li>Page/post WYSIWYG editor by using the buttion in the editor</li>
<li>In sidebars by using the OTW Shortcode Widget</li>
<li>In template files by using the Toggle’s shortcode and WordPress do_shortcode function</li>
</ul>
Custom styling
If you need to further style an Toggles here are your options:
<ul>
<li>Each Toggle shortcode has it’s unique CSS class that can be used to style all Toggles.</li>
<li>Create a new class for each instance of a Toggle shortcode in its interface so you can style it individually.</li>
</ul>
Localization/Internationalization
This plugin comes Localization/Internationalization ready. It is following WordPress I18n standards.
Full version of the plugin
<blockquote>
Upgrade to the Pro version of this plugin – the fastes way to build your WordPress based site including regular updates and premium support: 
 <a href="https://1.envato.market/c/1246358/275988/4415?subId1=cm&subId2=2020&subId3=https%3A%2F%2Fcodecanyon.net%2Fitem%2Fcontent-manager-for-wordpress%2F7431829&u=https%3A%2F%2Fcodecanyon.net%2Fitem%2Fcontent-manager-for-wordpress%2F7431829" rel="nofollow ugc">Content Manager</a> | <a href="http://otwthemes.com/demos/1ts/?item=Content%20Manager&utm_source=wp.org&utm_medium=page&utm_content=upgrade&utm_campaign=cml" rel="nofollow ugc">Demo site</a>
</blockquote>
<ul>
<li>Custom Responsive Layouts – Build in Seconds</li>
<li>Front-end Editor – Edit your layouts and content in the front-end of your site</li>
<li>40+ Shortcodes with add/edit Interface, Custom and Imported Shortcodes</li>
<li>Insert Shortcodes Anywhere – Layouts, Page Editor, Sidebars, Template files</li>
<li>Insert Sidebars Anywhere – Layouts, Page Editor, Template files</li>
<li>WordPress Widgets Anywhere – Layouts, Page Editor, Template files</li>
<li>Content Sidebars</li>
<li>Support and Updates</li>
<li>Zero Coding Required</li>
</ul>

Toggles Shortcode and Widget

Create Toggles. Nice and easy interface. Insert anywhere in your site - page/post editor, sidebars, template files.

Toggle Toolbar vs Toggles Shortcode and Widget