Magnathorax

One Click Delete Page and Post is a lightweight, secure plugin that places a convenient “Delete” action in the frontend admin bar for users who have the <code>delete_post</code> capability. By default a confirmation dialog is shown; the plugin moves the current page or post to Trash when confirmed.
A settings page (Settings → One Click Delete Page and Post) provides a single toggle to enable or disable the confirmation dialog.

One Click Delete Page and Post

Adds a "Delete" item to the frontend admin bar next to the Edit link.

ramon fincken

Deletes all unused tags, handy tool if you want to start over with a quick clean blog.
Coding by: <a href="https://www.mijnpress.nl" rel="nofollow ugc">MijnPress.nl</a> <a href="https://twitter.com/#!/ramonfincken" rel="nofollow ugc">Twitter profile</a> <a href="https://profiles.wordpress.org/ramon-fincken/" rel="nofollow ugc">More plugins</a>

Mass Delete Unused Tags

Deletes all unused tags, handy tool if you want to start over with a quick clean blog.

One Click Delete Page and Post vs Mass Delete Unused Tags