Hi
It depends on your browser.
I use Google Chrome and it has a setting for remember passwords.
It's under Personal Stuff in the Options menu.
If you use CCleaner or another cleanup utility you need to control what cookies you delete.
It's under Options Cookies. Keep the cookies for sites you visit regularly.
I don't use Internet Explorer so I can't tell you where the setting are to save passwords for it.
You might want to try Chrome, everyone that I know uses it instead of IE.
It's fast and easy to use.
You can set your auto fill setting to put in things like your address, phone number, name etc. when any form comes up.
I like this a lot, it saves a lot of typing...