Roboform is a legit product for keeping track of user ids, passsword and filling forms. It's a PC Magazine Editor's Choice and recommended by many others. It's made by Siber Systems and they've been around since '97.
There's a free version that is somewhat limited and then the paid version at $30. If you stick with it, it's worth the $30. I've been using it for about a year now but it's been around for a long time.
Phil