Just want to put in another good word for RoboForm. I've been using it for two years and I use it all day, every day. It's a great program and very secure. Unlike some competitors (i.e. Gator) it is not scumware or spyware, either.

RoboForm stores all of your passwords and user IDs and allows you to access them by using ONE master password. So you make up ONE really hard-to-crack password and that's all you have to remember.

It also fills in online forms for you, which is a big time saver if you buy a lot of stuff online.

Can't say enough good things about it!