Transforms reddit headers and the "next" link to fixed floating toolbars. This userstyle currently only works in Google Chrome. I am planning on adding support for Firefox eventually.

Before screenshots: http://i.imgur.com/lVVfS.jpg

After screenshots: http://i.imgur.com/dWbE7.jpg

Subreddit moderators: You can use the (cross-browser, unlike this userstyle) custom CSS for your subreddit at http://www.reddit.com/r/reddithax/comments/bdbe0/custom_css_for_fixed_floating_toolbars_including/