Some of my pet peeves about meetings relate to what happens BEFORE the meeting. This is all about preparation.
1. Every meeting must have a clear purpose - especially if it is a meeting that happens regularly. This ensures that the meeting is focused and that we never have meetings on autopilot.
2. The right participants must be involved - again, avoid being mindless about this. There may be people who do not ordinarily attend your meetings who should be invited because they can contribute to the thinking.
3. Prepare a clear agenda that articulated the problems that must be solved or the decisions that must be made.
4. Clearly articulate what preparation participants need to do ahead of the meeting - and give them adequate time to do it.
I discuss this in detail in this video. I hope you find it useful.