What is on the agenda?

So you read my earlier post and you realized you need to have an agenda. Now what should be on your meeting agenda? I believe meetings should have a beginning, a middle, and an end, and that your agenda should guide you through. You start the meetings with your introductions or your icebreaker or whatever you need to get your meeting started. You get your work done (the bulk of the agenda). You wrap it up and confirm what your next steps are. Simple, right?