Stew Dellow

WP Top Navigation puts the WordPress admin navigation at the top of the screen providing more screen estate for the rest of WordPress. Its non-destructive nature still allows for a responsive admin area.
Works with WordPress admin theme colours.

WP Top Navigation

Puts the WordPress admin navigation at the top of the screen providing more screen estate for the rest of WordPress.

PluginsPoint

Kento Scroll. Jump. Top. Is a simple and very light plugin that will take your visitors to the top of the page once they are scrolling through your page.
Plugin Features
<ul>
<li>Select from 20+ icons</li>
<li>Smooth transition</li>
<li>Easy install and active</li>
</ul>
Plugin Demo and Support: http://kentothemes.com/items/plugins/kento-scroll-jump-top/

WP Top Navigation vs Kento Scroll Jump Top