Sorry for the generic title, but I figured with this being Off Topic it would slide

I thought making this thread would be a good way for me to learn from anyone willing to pitch in. Im looking to pick up the basics. I am not talking about Comptia basics, but the procedural stuff that I have not seen covered in any of the certs. Maybe its too mundane or just assumed someone will teach you this stuff when you get a job.
But for me that wont work, since I am currently the first line of IT support here (god help us all) until I leave. When I leave, I want to make sure I leave this place with some semblance of organization. I don't want to leave this employer pulling their hair out with the mess I have made. So first up...
1)
What should I do with all the cartons and containers from electronics? I have a mountain of cardboard boxes I was told I need to save, because that's what my boss was told by the last IT guy. Is this true? The boxes do belong to equipment currently in operation.
2)
Old software CD's and documentation? Im referring to stuff for Windows 98/NT. All of the software has been upgraded to its most current version.
On creating policies:
I seen on here that someone had said they used Microsoft's policy guideline (or something similar) when they created several policies. I cant find anything like this and I have been looking for a week. Any idea what they might have been referring too?
If that's a wild goose chase, how do I approach creating policies for computer use and other necessary areas? Copy a larger companies policy and trim it down/add to it until it fits this business?