TRAVEL PLANNER - APP - TripIt

This cool app is called TripIt.  It helps you plan your trip by organizing your airline, hotel and car rental reservations. 

TripIt helps you organize and share your travel plans no matter where you book. Forward travel confirmation emails from over 1,000 sites to plans@tripit.com to auto-magically create a trip itinerary with all your travel plans plus maps, directions and more.

TripIt can monitor your Gmail and automatically compile itinerary information for upcoming trips.
That's right—TripIt will check your incoming email for messages from JetBlue, Expedia, Hertz, Marriott, and other common travel services and automatically import their details into a TripIt itinerary for you.

It's a one-stop app for travel convenience. You get online check-in links, the weather at your destination, traffic advisories, a planned route from airport to hotel.