The life-cycle of a Group Policy Object is not something that has received a lot of attention over the years. Microsoft's Advanced Group Policy Management is great, but not widely used and doesn't cover some key life-cycle needs. There are some tools out there to help in that area and at SDM Software you can find a couple of very nice solutions to common configuration issues. Take a look at Group Policy Compliance Manager and Group Policy Auditing and Attestation when you get a chance.
But, out of the box, comments are great and it may be helpful to take a few minutes to check them out. I recorded a bit of a stream of conscious discussion, with myself, on Group Policy comments. Take a look. If you have ideas of other topics around configuration, Group Policy, PowerShell and more, let me know. I'm happy to drill into different areas that may be helpful to folks.
Enjoy!
Kevin