Hard Passwords Made Easy

In this article, I’ll discuss how to create a strong password, and how to keep track of all your strong passwords, if you have a definite need to keep more than a couple. Don't bother creating and remembering strong passwords for low value systems, and certainly don’t use the same passwords for low value systems that you use in high value systems.

Locke, John. Free Software Magazine (2005). Articles>Software>Security