First, you add some more rules

Smiling, you write under the "Reality" heading:

OLD RULE: Any rules written here will not have negative side effects on the notebook's owner's family or friends.

OLD RULE: The notebook's owner will remember how the world was before he found the notebook, but will also have complete memories of his life in the changed world. This will not affect his sanity in any way.

OLD RULE: No one gives a second thought to the notebook, or the act of writing in it.

NEW RULE: No one but the owner is able to write in the notebook, and the owner instinctively knows where the notebook is at all times.

OLD RULE: There is no such thing as disease or sickness, and any injury instantly heals itself perfectly.

NEW RULE: There is no more war.

OLD RULE: Everyone has more than enough food to eat, and water to drink.

OLD RULE: No one physically ages past their mid-twenties.

OLD RULE: Girls only get pregnant when they want to.