.fay

This plugin allows you to add a sliding login/dashboard panel to any WordPress Theme. This awesome panel is based on http://web-kreation.com/index.php/tutorials/nice-clean-sliding-login-panel-built-with-jquery/
Instead of modifying directly theme files, just install this plugin so you can preserve you panel when switching between themes (or after themes updates).
You can also specify your own HTML content to put in the panel… Yes! this is awesome!

WP Sliding Login/Dashboard Panel

Excellent

Automatically add a sliding login/dashboard (or whatever HTML content) to your Wordpress Theme

Z.com byGMO

GMO Page Transitions adds Page Transitions actions to your site. Click on the link, and page will slide over to left or right. This effect will not apply when “target=_brank” is used.
<h3>Instruction</h3>
Install and activate a plugin. Open the “GMO Page Transitions” settings screen, choose from left or right and save.

Plugin Name: GMO Page Transitions

GMO Page Transitions adds Page Transitions actions to your site. Click on the link, and page will slide over to left or right.

WP Sliding Login/Dashboard Panel vs Plugin Name: GMO Page Transitions