An interesting feature of AlPass is its supports for multiple accounts; it can be used by more than one user. Of course, each account has its own master password to login. You can automatically login (you can enable or disable auto login from preference menu) into any site with a single click.
ALPass is free, and can be carried on a USB stick or other storage medium. ALPass is completely free (but, commercialware) and works on Windows Vista, XP and 2000. The main disadvantage of AlPass is that, the program only supports Internet Explorer; there is no provision for other browsers in this version.