Takes money directly out of your checking account to pay for your purchases. However, not all stores accept this. Recommended over credit cards if you want to stick to spending no more than what you have. Visa and Mastercard debit cards can be used as credit cards online. Call your bank for details on other debit cards. If your card is not working or is giving an error, call your bank to lift a possible restriction that was placed on your card to prevent theft.
Allows you to buy things with money that’s not yours, provided you pay the bill later. Accepted at many more places than debit cards. Depending on your bank, you might not be able to make international purchases, or you may have to pay a foreign transaction fee (usually 3%). A method to build credit if you can make your payments on time every time. Please remember your payment deadlines. Not recommended for people who see the credit line as how much they should blow monthly.
This is probably what you’re going to be using most of the time. Get an account. Paypal’s exchange rates are shittier than what’s listed on http://www.xe.com/ and they’ll automatically include a currency exchange fee in your transaction. You do not need a credit card to use Paypal - they allow you to link your debit card directly. Highly recommended. It takes 30 seconds to verify and payments can be instant, while payments directly from your bank account take a couple days. Some banks get suspicious if cards are used for foreign purchases, so this allows you to work around that as well.
You may pay by credit card or PayPal using the "Instant Checkout" or "Add to Cart" feature.