You can choose the way you want your ticket delivered when you place your order. It sounds like you chose the print-at-home option. So that is your ticket. You only have to show it when you enter the park. Then you can fold it and put it away. If it gets destroyed or wet, etc., you can go to guest services and they can print another one for you. Another option, if you have a multi-day ticket is to print enough copies of your ticket so you can use a new one each day.