Fastpass helps you avoid lines, and it's included in regular park admission. Insert your theme-park ticket into the machines near several attractions. Out comes your Fastpass, printed with a one-hour window of time during which you can return to get into the fast line. Don't forget to take your park ticket back, too. You can't make another until you're within the window of time for your first appointment. The best strategy is to reserve your Fastpass appointments only for the most popular attractions and to make new ones as soon as existing ones mature.