Capacity Planning tools for thin provisioned volumes

when first moving to thin provisioned volumes, what are the best capacity planning tools to have in place to insure that the growth of thin provisinoed volumes does not create a space outage if not monitored properly?  

Which free and paid tools and methods work best for tracking usage of thin provisioned volumes? out of the box tools, OCUM, OCI, WFA workflows, scripts, etc.  

Your experiences, recommendations appreciated.

Thanks!