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.

Olevmedia

Olevmedia Shortcodes plugin adds a button to editor, which provides you plenty of handy shortcodes:
<ul>
<li>Accordion</li>
<li>Toogle</li>
<li>Tabs, (it’s responsive)</li>
<li>Blockquote</li>
<li>Box</li>
<li>Buttons (you can choose icons, colors, specify tooltips and much more)</li>
<li>Columns (up to 1/6, also it’s responsive)</li>
<li>Counter</li>
<li>Divider</li>
<li>Dropcaps</li>
<li>Icons</li>
<li>Infoboxes (small, big, with buttons)</li>
<li>Lists (custom bullet icons)</li>
<li>Logos (line up images accurately)</li>
<li>Map (insert responsive Google Map)</li>
<li>Marker</li>
<li>Recent Posts</li>
<li>Table (styling)</li>
<li>Pricing tables (it’s responsive)</li>
<li>Video (insert responsive video from YouTube, Vimeo, etc.)</li>
<li>Few more shortcodes</li>
</ul>
<h4>Features</h4>
Plugin provides handy shortcodes generator interface, so you don’t need to remember all codes, just click the button at the editor toolbar and get the shortcode!
Shortcodes layout is responsive, so they are nicely displayed on mobile devices.

Olevmedia Shortcodes

Olevmedia Shortcodes plugin adds a button to editor, which provides you plenty of handy shortcodes (buttons, icons, lists, infoboxes and more)

Toggle Toolbar vs Olevmedia Shortcodes