Make sure your PASSPORT is valid for 6 months past your return date, or you may be disallowed to enter the country.
Besides a passport, a birth certificate, international drivers license, medical coverage information, bank and credit cards; leave copies of each at home, entry requirements are different in some countries, give yourself enough time to have the right documentation and depending on the country – medical immunization.
Use the safe if there is one provided, for the sometimes small fee, will give you peace of mind.
Check airline luggage restrictions on all flights, not just the initial flight, these may differ between airlines.
American Express Travelers cheques may be issued for free from your banking institute, but foreign banks may charge you for each one you cash, most airports have ATM machines, you must set up your charge cards with a PIN at your bank in order to use them for cash, interest rates on bank cards and credit cards are usually the exchange rate with possibly a service fee; you should check with your bank. If traveling off the beaten path cash may be the only thing accepted.
If you are bringing your cellular phone or mobile PDA check with your service provider if it will work in the areas you are traveling, as well as the rates for the use, and daily charges that may incur – see more under communication.
Calling cards are usually a cheap and easy way of making calls from most countries.
Bring a electrical converter with you if you need to plug in chargers, curling irons etc.
Pack your overnight/carry on with items that you may need if your luggage is misplaced, including toiletries and proper attire.
Read up on your destination if you have never been there before.
Tag your Bag – use a color ribbon for fast identification.
If you are prone to allergies, bring an antihistamine with you.
Don’t pack things you don’t need, but do pack items that may be expensive to purchase while traveling ie: sunscreen, bug spray, and personal toiletries.
Front row seats and emergency exits provide the most leg room; there are conditions that apply to the emergency exit seats.
During your flight, especially a long flight, exercise your legs, if possible while in your seat or by walking around, and also drink plenty of water.
Use a buddy system; don’t go venturing out alone, especially after dark!
While off your resort avoid bringing more money that you actually need, and carry it in a safe place, money belts are available at luggage store, most places have banks, should you require more, also bring tissue with you, as some places are not equipped with any or will charge a small fee.
Bring a good pair of walking shoes.
Do not bring food in or out of the country.

Have a Great Trip!