You can make your web browser run more efficiently and help keep your private information safe by clearing your data cache. If you are on a public computer it is highly recommended to do this at the end of your session. At home or a personal office it's not as necessary for security. All web browsers have this in the options or tools menu. In Windows you can also clear it through Disk Clean-up,
. found in the Control Panel. You can adjust the settings to save your passwords if you're on a private computer, for convenience.