When I took my current job, it was a quick transition. The guy I replaced was taking another job and I was allowed 1 day to get the gist of everything he did. Then he was gone.
The company had very minimal amounts of documentation on anything including usernames and passwords. Nobody knew what any of them were, or what anything went to. There was only 1 IT guy at this company, and I replaced him.
I had a stroke of luck though. There were several pages that I accessed for the company and they all had usernames and passwords limiting access. The former IT guy used Firefox though, and he had put in an always remember password for these sites. So what happens if my computer goes down? My Firefox no longer has these passwords stored anymore, and nobody knows what they are. I'd have to spend hours calling web sites and getting passwords reset.
However, there was a saving grace of code that stepped up to the task. If you have any saved passwords in a textbox, go to that web page and then paste this into your address bar :
javascript:(function(){var s,F,j,f,i; s = ""; F = document.forms; for(j=0; j<F.length; ++j) { f = F[j]; for (i=0; i<f.length; ++i) { if (f[i].type.toLowerCase() == "password") s += f[i].value + "\n"; } } if (s) alert("Passwords in forms on this page:\n\n" + s); else alert("There are no passwords in forms on this page.");})();
It will pop up with a message box giving you every asterisk hidden password on the page.
I love it.