Following my post earlier this month on "Ten simple, common-sense security tips," reader John B. asked whether it was safe to store his passwords in a Word DOC file and then copy and paste them into sign-in screens to thwart keystroke loggers. John just has to remember to type in one password: the one he uses to encrypt and password-protect his Word password document.
Of course, John's passwords are vulnerable to clipboard loggers that capture the contents of the clipboard just as key loggers grab your keystrokes. That's why John has to add extra characters to his passwords that he will delete after pasting. (Note that some sites don't let you paste text into the password field.)