You probably know the problem: you have dozens of accounts all around the web, and it is difficult to remember all the username/password combinations. If you only use one browser you can use the built-in password manager. But if you use multiple browsers and/or multiple computers it becomes difficult, and so I keep some sheets full with username/password combinations on my desk (I know, every security officer would slap me for that *g*).
There exists a solution for that problem: OpenID. But unfortunately, it is not that wide-spread yet. And so I wrote a little application, j.42dh, which allows you to access your username/password combinations with your OpenID. If you have any qualms about using such a service, which I can understand as theoretically I will get access to all your accounts, you can also download the application and install it on your own server.
Your feedback is welcome :)