I manage several dozens of online accounts with sensitive info so I have to always keep tabs of my login accounts — 3 online banking accounts, 4 dedicated servers with varying root access, 6 major personal sites with different login access, and several other administrative access to online sites.
I stumbled upon KeePass and am using it right now. Together with my Apacer 128MB flash drive, it’s almost a perfect security-in-a-pocket. :)