Have you clearly defined "why" you are meeting?
What is your desired outcome from the meeting?
How will you know if you've achieved it?
Where, how, and with whom do you want this meeting?
How can this meeting satisfy the needs of everyone attending?
What will improve and what could get worse as a result of this meeting?
Have you put first things first?
Which agenda items will deliver the desired outcome of the meeting? DO THESE FIRST!
Have you clearly defined how long the meeting will be?
Do you start on time?
Do you end on time?