How about just be punctual, respecting the time others have agreed to meet with you? Simpler solution than what this article suggests. People will abuse that system just the same anyway.
This. In my experience you have to call out people and tell them politely that you expect them to be on time.
Otherwise, people will simply come 10 minutes past if you start 5 minutes past.
How do you plan to show up on time if one of your meetings ends at 2pm, the next one starts at 2pm, the meeting rooms are 3 floors apart, and you need to go to the restroom because you've been in meetings since lunch and need to pee? You're going to clone yourself?