These are the following things you must keep in mind-
Understand the currency
Understanding the currency value is important. What a one dollar bill can buy you and what a one rupee coin can buy you is entirely different. Don't get confused between numbers.
Bank Accounts
To avoid any mishappening open an account in some International bank that is available everywhere.
Wire Transfer
Learn about wire transfer and money transfer for easy and secure tranfer of money from your side.
Debit and Credit card
Carrying plastic money is hastle free and also keeps a record of your spendings unlike cash.