it is always wise after being on line to clean out the cookies. also clean out your history, and temporary internet files after being on line. today the cookies and temporary internet files are not needed as they were when dial up was the only connection. with the high speed broadband, the use of temporary internet files and cookies are not that critical as once was. plus, cleaning them out makes it harder for someone to see where you have been.
cookies get renewed everytime you visit a site. so today they are not needed as much. they are more of a tattletail now.