There are plenty of password manager software which have their own features. Some software just manage your password, some fill web forms and some of them can be carried on USB key. If you are looking for a software which can do all those task and much more.

LastPass is free online password manager and form filler which can fill your web forms and password and store your password securely. The difference between other password manager software and LastPass is that it stores your password and form-fill data online. You can carry your password manager with yourself as all data is stored online and you can access them from anywhere along with LastPass pocket on USB key. Another good thing about LastPass is that it supports Windows, Linux, Mac and about all popular web browsers.
There can be a concern that your password is stored on others server but you can be sure that your password is protected by 256 – bit AES encryption.
Features
Create strong passwords, knowing you only have to remember one.
Log into your favorite sites with a single click
Fill forms in a second; stop pulling out your wallet to get your credit card number
Access and manage your data from multiple computers seamlessly
Securely share logins and notes with friends and let others share with you.
Synchronize Across Browsers
Export Your Data
Import Your Data
Backup & Restore
Access from USB Keys
Screen Keyboard
One Time Passwords
To get started create account on LastPass after that install small software this software will also install a browser toolbar which will help you to fill web forms and password.
Watch the video how LastPass works.
httpv://www.youtube.com/watch?v=obzh77-nD-I&feature=player_embedded

Have you tried RoboForm password manager? We are the by far the most downloaded and top selling password manager in the world.
It’s look cool. However I don’t ever like to store password outside my machine. Good work.