The only way to guarantee 100% password security is to not store it any place or in any format.

Bake yourself a super-strong password that is super-easy to remember: PasswordCake.

PasswordCake is a password generator based upon simple, easy keywords (or phrases) of your choosing; whatever is easy to remember! Simply enter your easy-to-remember keyword -- for example, your name -- and out comes a strong password. Whenever you need your password just enter your simple keyword.

Changing various options allow you to generate multiple passwords using the same keyword.

No need to write your strong password down or store it on a file -- both of which are security issues -- because you can't remember your strong password. With PasswordCake if you can remember your name you can remember your password!