What strategies are you using to minimize meeting sprawl?

Using collaborative tools to mitigate that 

Our goal has been to limited audiences, especially within a given functional area. We want to limit the numbers of bodies in the room that have overlapping areas of expertise. Additionally, we have logged all recurring meetings and looked for overlapping areas there where we could consolidate, eliminate or streamline otherwise.

Focus on time-boxed, agenda specific meetings with a tab on action / takeaways for future meetings. Also, try to keep direct 1-1 meeting separate from the decision-oriented group meetings.

We start with a clear agenda and aim to get clear actionable items. We also communicate the necessity for why meetings are important, and the shared desire to keep them short which helps set expectations.

We're using a centralized calendar sharing app to track availability and keep things on track. The term "Hard Stop" is often used, and meeting times are rounded down a little to prepare for the next meeting.