Admin Flush W3TC Cache is a WordPress plugin by texastoast78 that works with the W3 Total Cache plugin. It simply adds an “Empty All Caches” option to every Admin page.
Adds “Empty All Caches” link to the top of every Admin page.
Clicking the link clears all caches and returns you to your current page.
No need to go to Performance options anymore, just clear the cache from wherever you are.
Requires the W3 Total Cache plugin.
Download: http://wordpress.org/extend/plugins/admin-flush-w3tc-cache/
