Aleksandr Zelenin

Plugin adds so desired Maintenance mode. And it so easy for you.
<ul>
<li>easy settings</li>
<li>4 strict and funny templates</li>
<li>custom image slider</li>
<li>time based maintenance</li>
<li>custom logo and custom text</li>
<li>social icons</li>
</ul>
For advanced users:
<ul>
<li>access rules by IP and user</li>
<li>custom css</li>
</ul>

Maintenance mode Z

Maintenance mode for WordPress with many settings

Sybre Waaijer

<h4>Easy Mode Dashboard</h4>
Simplify your dashboard with easy mode
WordPress can be quite overwhelming for new users, the EM Dashboard resolves that in one click.
This plugin allows you to:
<ul>
<li>Clean up your dashboard with a single button.</li>
<li>Enable default Easy Mode setting for new users.</li>
<li>Enforce the Easy Mode settings.</li>
<li>Enable or disable the Easy Mode button.</li>
<li>Optionally load a soft grey new theme.</li>
<li>Set default color scheme for new users.</li>
<li>Remove the color scheme selection.</li>
</ul>

EM Dashboard

EM Dashboard adds an Easy Mode feature in your admin dashboard so you can work distraction-free. It's super elegant for new users.

Maintenance mode Z vs EM Dashboard