Stian Andreassen

This plugin let’s you set global “Screen Options” for all users in the Dashboard and when adding/editing Posts and Pages. Sets screen options for all users, current and new ones. Option to hide “Screen Options” tab on the Posts and Page pages in WP-admin.

WP Global Screen Options

Hide meta boxes globally for all users on Posts and Pages in WP-Admin and on the Dashboard.

bmeisler

This is a very simple (but useful) plugin. All it does is:
<ol>
<li>adds a “Featured Image” checkbox to the Screen Options when viewing in All Posts mode.</li>
<li>when the checkbox is selected, it will add a thumbnail of the post’s Featured Image to the All Posts screen.</li>
</ol>
This allows you to:
<ol>
<li>easily take an inventory of posts to see which are missing featured images (in this day and age, all posts should have a featured image) and</li>
<li>quickly scan your posts—it’s frequently easier and quicker to identify a post by its featured image than by scanning titles.</li>
</ol>
No css or js is added. The database is not altered in any way.

SSM Xtra Post Info

a must have

A very simple plugin that shows a thumbnail of a post's featured image when you are in the Posts/All Posts view mode.

WP Global Screen Options vs SSM Xtra Post Info