Spencer Brown

This plugin offers you the ability to add custom page template files to your WordPress installation without having to manage 
theme folders or use a ftp client. Simply upload the custom template file you have been working on and it will be registered 
with WordPress as a template option for your pages. This plugin is straight to the point and has a clean user interface using 
W3.CSS.
Plugin menu is located under ‘Appearance’ menu.
Attribution: This post online and code on github by wpexplorer: 
http://www.wpexplorer.com/wordpress-page-templates-plugin/ 
https://github.com/wpexplorer/page-templater

Custom Page Templates Setup

Easily add custom page templates without having to use ftp or keep track of changing themes.

Sergey Biryukov

On some servers <code>$_SERVER['PHP_SELF']</code> contains <code>/example.com/index.php</code> instead of just <code>/index.php</code>. This one-line plugin restores the correct value. You only need it if you have problems with some other plugins and/or URLs like <code>http://example.com/example.com/wp-admin/</code> in your admin screens.

Correct PHP_SELF

Fixes incorrect PHP_SELF server variable.

Custom Page Templates Setup vs Correct PHP_SELF