Simple options to tidy up the uncommonly used buttons and controls from WordPress TinyMCE editor. Updated to work with both the new 3.9 editor and 3.
Download a zip of the repository and put in a wp-tidy-tinymce directory inside wp-content/plugins.
Go to the plugins page and activate it.
You can then visit the Settings > Tidy TinyMCE page to pick which block formats and buttons you want to be available in the editor.