Hard drive space on a File Print server

Hi I am looking to see if somebody out there has a “checklist” so to speak on how to free up up space on a file print server.

I work in a 24/7 environment with a lot of shared folders and our C drive on the FP server can fill up if I’m not careful. This can obviously lead to printing issues etc.

Right now I just use “trail and error” but I am looking to see if somebody has a more professional methodology for this?