Scheduling meetings is part of running (or participating in) a business. Having document ready to review is part of a meeting. The two (meetings and documents) usually go hand in hand. The challenge sometimes is being able to quickly and easily find the documents that need to be discussed with the meeting.
When you create a calendar event, you normally enter information like the name of the event, date, time, location, etc. In Calendar, you're able to enter much more than that, including notes, URLs, travel time, alerts... and even documents!
Wait, what? It's true. When you create a calendar event, you can actually add documents to the event. Doing this is simple. Just click on the "Add Attachment..." link near the bottom of the "new event" dialog box.
You can add one document, two documents, three documents or more. In the example below, I have a staff meeting where we will be discussing two documents (a Pages file and a Keynote file).
Not only are both attachments available from Calendar on my Mac, but they will also be available on my iPad, iPhone and other devices that I have syncing with my iCloud account.
If you invited others to the meeting using the "Add Invitees" option, they will also receive a copy of those files via the emailed meeting invitation.
One caveat that you need to be aware of is that once the files are added to the calendar event, they are not linked to the original document. The files become a static copy. In other words, if you add a file, then make a change to the original file on your computer, the version in your calendar will not be updated with the changes.