NeoMacro Magento RefreshCache is a simple extension which uses Magento Cron capabilities to automatically check for invalidated cache types in Magento and refresh them every time cron runs.
You must have Magento Cron properly set or this extension will not work.
Beware: This project is still in a very early stage. So, it may contain bugs and, of course, many limitations.
Contributions, bug reports and suggestions are welcome!