To add a credit card or add additional cards to your PayPal account, please follow these simple steps:

1. Click https://www.paypal.com/CREDITCARD or copy and paste the entire link into the address bar

2. If you already have a credit card registered, click 'Add'

3. On the 'Add Credit Card' page, enter the credit card information

4. Click 'Add Credit Card'

Repeat this process for any additional credit cards.