My boys are 6 and almost 3 (he'll be 3 in June). We are going back in March for my ds's spring break. I am so excited and I don't know how many times I've almost said something to my oldest about the trip! This is how we plan to surprise them. We are driving down and leaving the 14th, around 10pm. My dh is coming home from work at 6pm and napping until it's time to leave. I told the kids already that if they let me nap for a bit after school that day they can stay up as late as they want, since it's the start of spring break. When it's time to leave I will say ok boys lets go (which is what we always say at bedtime). I know my oldest will whine and complain and say he doesn't want to go to bed. So I can say ok then, what should we do? Should we go somewhere, like a drive or something? Get them loaded in the car where they will find their stuffed Mickey's sitting in their seats and the envelope that came today from Disney, with a pic of the castle on it. Then let them figure it out! I want so badly to tell them now though, I can't stand it. Using the luggage tags is a good idea too though. I might have to get them from our last trip and maybe put them on their backpacks that I'm planning on having filled with goodies for the trip.
We went Jan of '07 for the first time, which was a surprise Christmas gift to us from my dh, but the kids still had to know for 2wks that we were going and always asking when are we leaving, is it time yet, etc. So this time they are finding out at the last possible second.