Please make sure that you have the correct travel documentation. This means that you have the necessary visas that your passport is up to date and is not full of visas and stamps. Try to make sure that your passport is always valid at least six months longer than your date of return. If your passport expires within six months of your intended date of return. Check with the airline before making your flight reservations. If you don't you might not be allowed to travel.
Not everything in duty-free is a bargain. They might be duty-free but they are certainly not profit free!
If you want to do lots of duty-free shopping, plan ahead before you travel. Find out the cost of things before you leave and remember the exchange rate. If you are buying liquids and are changing flights, make sure you can carry them on the next flight. A bargain isn't a bargain if you have to give it to the security personnel.
If you travel often by air you will know that very often you become sick a few days afterwards. Many airlines try to save fuel by circulating the smallest amount of fresh air. Of course, they won't tell you that but you know how often you feel sick after a long flight. I have found that "Airmune" has helped me avoid becoming ill - try it and see if it helps you. For more information click here.
Choose your airline and flights with care, don't always take the cheapest. If you have connecting flights it usually takes more time with children. Time spent at airports is expensive as prices are $ based and always more than in the city.
Book seats early to make sure your seating is next to each other. Book a bassinet as soon as possible. Get to the airport early, especially if seating is on a first-come, first-served basis. Many airlines charge for advance seating, although this can be expensive it can be money well spent. Here is a list of sites which are useful for getting seat information:
Many airlines have a children's meal option this is often appreciated by the little ones. Special meals must be reserved at least 48 hours in advance. Pack favourite snacks and don't overload on sugary treats and sweetened drinks. Small children need entertaining, so take colouring books, toys, games or videos downloaded to a tablet, whatever it takes.