Some repeating and in addition to pp's:
1. Allow plenty of extra time for driving to the airport/parking & getting through security. (Unless you're getting RT transfers from friends/family or a private transportation company.
We're only around 20-25 mins but I allow an hour just in case of a flat tire, an accident causing traffic delays, etc. This is in addition to the 2 hr arrival time.
We were always rushing at the last minute when we first started traveling and it was always so stressful when it didn't need to be. A dh used to say, "It's always a white-knuckle ride with you." lol. Now I allow plenty of extra time and we stroll along. I try to make every aspect of vacation as stress-free as possible now.
2. Eat in the airport terminal.
I find that if we leave home 3 hrs before our flight, plus a 2.5 hr flight, that's a minimum of 5-6 hours without a real meal. Sure snacks take the edge off but why stress? We still pack snacks in case we end up with little time at the gate but that's rare. It's nice to get through security, find our gate, then chill out with a leisurely lunch or dinner. (We usually fly after school or with early dismissal.) If the place you eat allows free drink refills, fill up to take on the plane.
3. If you plan to park at your home airport, research parking options well in advance. We used to just use the economy lot at Philly's airport assuming that was cheapest option possible. It wasn't bad going to the airport but coming home we would certainly get a grand tour of what felt like a square mile of parking lot. The bus only came every 20 mins and the drivers weren't very nice. Not only acting like they did us a favor but no help with bags despite traveling with 2 preschoolers.
We started looking at other options and found there are lots of off-site parking facilities that are grateful for our business and show it. We like PreFlight and found them by their coupon in the Val-Pak mailings.
They drop us off right at our car with only a minor ride around the lot. Their shuttle bus is much smaller & nicer and has seat belts. It comes every 5-8 minutes which makes 20 mins feel like an eternity. The driver always helps with our bags and some have even put them in our trunk.
They are truly deserving of a tip. They even have a frequent parker plan to give us free days of parking for every $70 or so spent. They also allow us to reserve parking in advance so I already booked the indoor parking garage for our Jan trip. Just in case of snow, I don't want to return to see my car plowed in.
I will never, ever go back to the airport's economy lot.
4. Only 1 pp mentioned traveling with decongestants. This is important if you have allergies or sinus problems. I used to get a sinus infection post vacation during peak allergy seasons. I finally saw an ENT and he suggested the decongestants and it really helps with the sinus pressure in any time of year.
Have a great time!
If you're staying onsite:
be sure to take advantage of DME by putting the yellow luggage tags on the bags that you'll be checking at the airport. If you're flying SWA going home, I would consider Early Bird check in. It's nice to not have to think about it at the 24 hr mark before going home. Disney will deliver your boarding passes and luggage tags to your room and you can check them right at the resort. It's so convenient & makes it stress-free.
I'm all about reducing stress while on vacation!!