You can make Cache Cleaner clean your cache without even having to log into the administrator.
By defining a secret word in the system plugin settings, you can then simply use it in any frontend URL of your website, enabling you to clean the cache directly from the frontend.
For example, let's say your secret word is set to: mysecret.
You can then simply place your secret word after a cleancache= parameter in url, like:
http://www.yourdomain.com?cleancache=mysecret
http://www.yourdomain.com/some-page?cleancache=mysecret
http://www.yourdomain.com/index.php?option=com_content&...&cleancache=mysecret
This triggers the cache cleaning process. When Show Message is enabled in the system plugin settings, a success message is shown after the cache is cleared. When it is disabled, the configured scopes are still cleaned without showing that message.
Note: as a prefix before cleancache, use a ? for SEF urls, or & for urls that already have variables.