No, don’t tell; really. Your password is important. Or, more correctly, your passwords are important. You have one for your user account, one for your e-mail account, and dozens of others for web sites you visit, FTP servers, network shares and other services. Managing your passwords can be a real headache; fortunately, Apple includes its “keychain” that centralizes your passwords.
But you need to know how to use the keychain and how to make it secure. In addition, you need to know how to choose secure passwords. Joe Kissell, writing in Macworld, has an article entitled I Will Use Good Passwords that will tell you the best way to choose and manage passwords to make sure your data and your Mac remain secure. It’s a good idea to read this, even if you think your passwords are secure; you may learn some useful tips for working with passwords.