Whoohoo! It’s almost 10 years later and password management apps are de rigueur. Since that post way back in 2012, not only are there multiple ways to save passwords including in your browser (which I would not recommend) there are passwords needed for absolutely everything.
Right now I have more than 500 passwords stored in my password manager. And have just added the “family” feature so passwords that should be shared don’t end up in someone’s notebook on or a post-it note stuck to their computer.