Keep your passport, tickets and money separately.
Put a photocopy of your passport in each your luggage.
Travel with mosquito repellents and other essential medicines.
Label your entire luggage with name and address.
In place of cash Travelers' cheques or Visa Travel Card are best.
Carry some empty plastic ziplock bags.
For your plane ticket Confirm, reconfirm, confirm once again.
Make a list of all your personal medicines that you are carrying with you and carry the list with you.
Make a list of all the things you forgot while traveling and use the list before your next trip.