GNU/Linux, KeepassX & Truecrypt
Secure data management with Keepassx & Truecrypt for both of this apps there is a windows version. Well I just started using keepassx to securely keeping my passwords so that as long as I remember the password to my keepassx database then I got access to all my passwords. Which is where I should have put the password for my Truecrypt encrypted disk which I forgot after a while and had to start all over. So far both of this apps seem to be really good but I guess is early days yet. Open source you got to love it.