I read an article on Lifehacker the other day which showed you how to turn a USB flash drive into a "master password key" using LastPass (and some proprietary program LastPass licenses). Obviously, this is both a super neat and incredibly awesome idea that I'd like to do. Unfortunately, I'm a cheap person and don't want to pay for the LastPass subscription and software. I'm curious if there is any free software available that would do the same thing.
If it makes any difference, I primarily use Linux for day-to-day use, so this software would have to work with Linux.
Also, if my question is not very clear, I encourage you to read the Lifehacker article. Actually, read it anyway. It's rather neat.
ANSWER:
So I decided to simply use KeePassX (a fork of KeePass which works on Linux) and store the password DB on a flash drive. I encrypted the flash drive so Joe Schmoe won't be able to get access to all of my passwords. Not EXACTLY what I had in mind, but meh, not a huge deal.