Here's an interesting take on security. Inkblot passwords.
The mechanism works this way:
You are shown 5-10 inkblots. You have to figure out what they look like. (Elephant, Sex turnip, insane marshmallow, etc.)
with each inkblot you assign two letters. The first and last of your description:
Elephant = Et
Sex Turnip = Sp
insane marshmallow = iw
The idea being:
1) no two people will see the same thing in 5+ inkblots
2) you can now devise complex gibberish passwords with an easy reminder that only you will get.
Nifty thing.. it's open ID. Which means you can log into sites like LJ with your credentials from the site. (It'd be an additional acct on LJ... but you could use it to track accts and see filtered posts.
Give it a shot over at the test site: http://www.inkblotpassword.com
It'll ask for a user name (make one up)... and you 'can' add an email.. but it's not required.
See if you can remember the password after a few days.