At least once a day I have to remember a password and login combination.  As hard as I might try to keep them similar many of the sites seem to have different requirements (first letter must be capital, one must be a number, etc.) and so I use delicious.com (others like diigo.com).  First off it is on the cloud so I can use it on any laptop.  Secondly if you save yours on your computer's browser, it can import them into it.  Next you can create folders.  You can also choose to lock the items so no one else can see them (good for the login/password combos) and if you want to share them, you can see who else is using the same site.  The advantage of this is that you might end up finding a whole host of new sites you never knew existed (and is one way I find new sites for this blog page).  If you want to see my unlocked items, go here.