I first read about TripIt on JoelOnSoftware. I thought the idea was pretty cool, but I never got around using it until now. So for those of you that are too lazy to read the info on the links here is how TripIt works. You receive confirmations of your flight, hotel, and car rental information from your source (AA, Hilton, Hertz) and all you have to do is forward that email to plans@tripit.com. Then you receive an email from them telling you your itinerary is ready and all you have to do is click on the link to view it. They...