Here are a few more:
Design a course where each hole is 150 yards away from the previous hole.
Have 7 tee boxes on each hole and mow each one every morning, whether or not there is a tee there today.
Have alternate fairways on several holes so you have two fairways to mow and maintain.
Most of these things are also, how to make a golf course play slow, (the 5.5 hour round)