After planning the honeymoon, I wish I had something like this to use. There is a new website that creates and compiles your travel itinerary all in one place, called TripIt. I’ve fooled around with it a little, and so far it’s handy though still is missing some functionality. I do like how you can forward all your confirmation email and it will create an itinerary, though it didn’t put in all the connecting flight details, which I ended up doing manually. I also haven’t tried planning a trip through the site, just used the site to put all the details together. Check it out.