After reading through the US-CERT recommendations in Password Security, Protection and Management (available for free in our IT Downloads library), I'm on a mission: to corral all my passwords into a password management application. Between accounts for work and personal purposes, I count nearly 15 separate passwords for email, social media, instant messaging, problem tracking and online forums that I use on a regular basis. That's a lot of remembering to do.
Just like the US-CERT tips suggest, for example, I make sure I don't:
Rarely do I use public computers, so the risk of identity or data theft is low, and I've learned to use passphrases. But, the list grows even more unwieldy as I add accounts, and the temptation to break some rules gets irresistible.
As long as your master passphrase is soundly constructed - and you can remember it - using a password management tool can take the pain out of juggling so much information.