Secure passwords that are already written down

This tip was submitted to the searchSecurity Tip Exchange by user Jim Jones. Let other users know how useful it is by rating the tip below.

I tell people to use something printed in their offices -- like a support sticker that has CPU or monitor serial numbers on it, usually a cryptic combination of numbers and letters. If you make sure to capitalize one of the letters, you have a good password using numbers, as well as lower and uppercase letters that means absolutely nothing.

Registration codes for software works well also.