The Simple Power of an Agenda
Do yourself and your co-workers a favor. Before you schedule your next meeting, spend a few minutes to write an agenda in the invitation for that meeting. Just because Outlook, Notes, and Google Calendar (or your preferred calendar app) will let you schedule a meeting without anything in the notes field, doesn't mean it is okay to do so.
It sounds deceptively simple, but by spending 3 - 5 minutes writing out an agenda you are doing several things that will make your meetings more productive.