I have been using Roboform for many years - it is a Password Manager and it also does much more. Today most browsers offer to save your passwords, so why pay money for something you can get for free ?
Well, Roboform saves your passwords but it does much more. It can generate random passwords, it works outside your browser, it can fill forms, can save "safenotes" (just about any text)...and the list goes on. Visit their homepage for a detailed list.
It installs a toolbar and by clicking on "logins", all the websites that you saved will appear and clicking on one will take you there and automatically log you in with your previously saved login/password. This is particularly useful as you don't have to type the adress you want - which obviously in my case is extremely useful.