The safest and easiest form of money is traveler credit cards. Major card brands include American Express, Discover Financial Services, MasterCard Worldwide and Visa International.

Master Cards: Every day, everywhere, Master Cards use its technology and expertise to make payments safe, simple and smart.
- Debit: pay now
Through its three debit brands — MasterCard®, Maestro® and Cirrus® — travelers around the world can make purchases and get cash immediately at banks and credit unions, at ATMs and even at the point of sale.
- Prepaid: pay before
Master Cards provide prepaid programs to meet a variety of needs with a focus on government, commercial and consumer cards that can be reloaded. They also deliver prepaid card program management services through its company Access Prepaid Worldwide, which allows them to manage and deliver prepaid travel cards to business partners around the world.
Whether standard cards that address basic credit needs or premium cards that give consumers enhanced options like concierge services, MasterCard provide a variety of products that make it easier for travelers to pay for purchases later.

Visa: Visa is the leading payments system all around the world, constantly working at the forefront of technology to introduce new, easier, and more secure payment options. 

The range of credit card products helps issuers to give their customers what they want: flexibility, convenience, safety, and control. Repayments can be spread over a period of time, so cardholders can adapt their outgoings to changes in their monthly financial position. This also provides reassurance for people using their card abroad or buying online.

American Express
American Express Cards are accepted at millions of major retailers all over the world, so you can feel confident shopping at popular brand-name stores. You can also use these Cards to take care of your everyday purchases at a wide range of gas stations, supermarkets and restaurants.
American Express offers both Credit Cards and Charge Cards, so you can choose from Cards with different payment options.

• Charge Cards have no interest charges because you pay your balance in full each month. It's a simplified payment option that can help you manage your monthly spending.
• A Credit Card gives you the flexibility to either pay in full each month or carry a balance with interest. At the end of each billing cycle, you're required to make a minimum payment, which is calculated as a percentage of your balance.
American Express also offers Credit Cards with no annual fees that still give the consumer access to plenty of the benefits and services.
American Express® Cards feature a variety of rewards programs for shopping, travel, and more:

Cash Back : When a consumer makes a purchase using a credit or charge card, a small portion of the price is paid as a fee (known as the merchant discount), with the merchant keeping the remainder.
Rewards Points: You can earn points to use toward rewards like gift cards or merchandise from over 500 leading brands in travel, shopping, dining and entertainment with the Membership Rewards®program.
Travel Rewards: Make the most out of popular airline and hotel loyalty programs. Depending on your Card, you can earn frequent flier miles, points, hotel stays, or more.
American Express is also the largest card issuer in the world based on purchase volume. It is the 4th largest card network in the world, based on the number of cards it has in circulation.