Before you set sail for your next flight be sure you have a copy of your flight itinerary with you. This valuable document often contains your confirmation and ticket numbers, and most importantly your return trip details. Often the excitement of voyage ends up blocking any thoughts of the return flight. So when it comes time to fly back home, recalling the exact time of departure isn't so clear without a printed itinerary.
Also, a complete itinerary in-hand is also helpful during tight connections. If your initial flight arrives late at your connection city, show the flight attendant your document so they can make arrangements for you to deplane first.
Finally, a copy of the itinerary is great because they remind you what time you will be landing. Most boarding passes do not provide this detail.