shazdeh

The WordPress Database Reset plugin allows you to reset the database back to its default settings without having to delete the site and recreate it.
Useful tool for theme and plugin developers who often have to clean up the mess and start over.

WPMU Database Reset

Clean up a single site in a WP network, by removing all posts, comments, terms and media files. A clean slate for the site.

sant0sk1

Adds an options page for an Administrator to choose which default WordPress dashboard widgets are available.

Clean WP Dashboard

Easily remove any/all of the default WordPress dashboard widgets

WPMU Database Reset vs Clean WP Dashboard