What's wanted, ideally, is a way to generate passwords that are both
strong and easy to remember. I use a system devised by my son-in-law
(a professional violinist with not much formal training in math or
computers) that makes use of a very clever variation on that goal --
it generates passwords that are both strong and easy to compute from
an easy to remember number.

Starting with a phone number -- say 557-6420 -- for example, one can
easily and mindlessly translate those seven digits at the keyboard
into the string "qzwxedcrfth7j" which makes for a fairly strong
password. (Adding the area code would make it even stronger, of
course, as would starting from a SS number.)

The method can easily be adapted to periodically change the password.
For example, after using that password for three months the same
phone number could just as easily be translated quarterly into the
strings "wxecrfvtgyj8k", "ecrvtgbyhuk9l", and "rvtbyhnujil0;" -- and
in successive years different phone numbers could be used.

You can probably suss out the method from this example, I betcha.

—BK