shawfactor

This plugin allows the following you to configure the backend new user screen to incorporate the following features
<ul>
<li>Optional use of email addresses only instead of username and email.</li>
<li>Optionally hide the new user url field</li>
<li>Optionally allow you to specify whether an email should be sent to each new user or not</li>
</ul>
These changes make adding new users to WordPress a lot faster.
One word of caution is that IF YOU USE EMAL ADDRESSES ONLly the plugin replaces the username with the email address of the user when a user is saved in the database. meaning your users will no longer have a separate username.
Check out <a href="http://lhero.org/plugins/lh-email-registration/" rel="nofollow ugc">our documentation</a> for more information.
All tickets for the project are being tracked on <a href="https://github.com/shawfactor/lh-email-registration" rel="nofollow ugc">GitHub</a>.

LH Email Registration

Streamlines user registration in the back end by allowing administrators to remove redundant fields and replaces usernames with email addresses

Son Do

Floating Publish Button is perfect especially for editors who use the page and post editing interfaces more than regular administrators.
They’ll find this plugin extremely useful, since there won’t be any need to scroll up and hit Publish/Save every time they want to update the post, especially if it’s a really long post or a page with lots of metaboxes.
If this behavior is annoying for some users, it can easily be turned off from the user’s backend profile page.
<ul>
<li>Enable/Disable settings in Admin > Users > Your Profile > Publish/Update button</li>
</ul>

Floating Publish Button

I'm working on a site with ACF custom fields to add sponsor logos to pages.  Some pages have dozens of sponsor logos so the pages get very long.  Having to scroll to the top of the page to update was a pain, but this plugin keeps the Publish metabox in sight.  And it still works in June 2017 :D

Still working :D

Should be in core

A WordPress plugin that alters the position and behavior of the Publish button, making it stick to the top of the page when scrolling down the page

LH Email Registration vs Floating Publish Button