Prepare: It is important to take time before meetings to determine what you would like to accomplish during the meeting. For example, if you are going to a networking meeting, you could ask yourself questions like "Who would I like to meet here?" Another example would be a client meeting, what are you going to cover with that person during that time. By taking the time to prepare for the meeting you ensure that you are utilizing your time to the maximum.
Reflect: Take time after meetings to reflect on what was covered during the meeting. What did you accomplish? What went right? What is an area that could use some improvement?
Prepare and Reflect for every meeting and you will maximize your time!