TripIT.com
This is a great site to use any time you’re traveling.
Simply forward your travel confirmation emails (flights, rental cars, hotels, etc) to plans@tripit.com and they’ll immediately parse and combine the messages into one easy to manage travel itinerary. Then they’ll email you a link to access the details - all without you having register or fill out all those cumbersome fields.
I’ve used it for several trips now and it’s worked flawlessly!