Difficulty: Moderately Easy
Step1
Recognize that you can't take it all with you. This should be obvious, but you'd be surprised how many people suddenly decide when moving overseas that they can't live without everything they own. Take a good, hard look at everything you think you want to take. You won't need to ship or take most of it.
Step2
Recognize that you can't take it all with you on the plane, either. Airlines have specific limits on how much you can take, and they will enforce it. Don't be stuck in the airport trying to unload an entire suitcase worth of possessions on your Uncle Bob. Know the guidelines (often larger for international flights) and weigh your bags before you go.
Step3
Pack sparingly for all seasons. Clothes can be bought overseas, sometimes for less money than it would cost you at home. If you have three bikinis, odds are you don't really need to take them all. You can always have them shipped later, should you really need them after you finish moving.
Step4
Ship things you won't need immediately as slowly as possible. This is just to save money. Moving your valuables overseas is going to involve a shipping company or the post office. Neither option is cheap. If you want to take your winter coat, but won't need it for a few months, put it in a box and ship it as cheaply as you can.
Step5
Leave the big items at home. Even if you're giving up your apartment locally to live abroad in a new home, you're better off not shipping your furniture. Either rent a place overseas that already has furniture, or, if your move is more permanent, buy it when you get there.
Step6
Leave the valuable or one-of-a-kind items at home. Put them in storage, leave them with a friend or relative, because moving them overseas means you run a very real risk of having them stolen or damaged.