153. (During an early rush) If you are too weak to finish off a civilization's last city, end the war with a cease fire, not a peace treaty. The AI will try to send some of his military units with a settler to try to expand. This will make these units easy prey and weaken the last city. You can declare again at any time since you do not have a peace treaty.
154. And if you take a peace treaty, remember you can shave 1 turn off any forced peace by canceling the "peace deal" when it has "0 turns left"
