It's easy—just click any "Yahoo! Wallet" link anywhere on Yahoo! You can go to Yahoo! Wallet directly at any time by going to http://wallet.yahoo.com.
When you sign up for a premium or subscription service at Yahoo!, such as Yahoo! Personals, Yahoo! Music, Yahoo! Games, or web site services, you enter your credit card and billing information in Yahoo! Wallet. This way we know which card you would like charged.
When you sign up, we'll walk you through a series of steps that include registering for a Yahoo! ID and password (if you don't have one), and entering your credit card, billing information, and Express Checkout preferences. Yahoo! Wallet now offers the ability to store multiple credit cards.