I follow a very simple way to do this. My bookmarks bar contains all the sites that I have an account on (around 15). Now I remember a base password, which is s

I follow a very simple way to do this. My bookmarks bar contains all the sites that I have an account on (around 15). Now I remember a base password, which is something like Dxx#fd. Now if gmail comes 2nd in the bar, the password for it will be D02#fd. Of course, you'll have to keep the bookmarks in one order for this to work.