|Most tracking cookies are not a threat you need to worry about. Websites place tracking cookies in your system so they can track where you go on their website. This is so they know what is drawing interest and to know where advertisements would be best placed. |
Some cookies are wanted or even needed. If you do online backing you will get a cookie that identifies that this is the computer used to access your account for example. if you try to access your account through a computer that doesnt normally access that account ,then bye noticing no cookies to identify that computer to that account, the banking computer will normally require more identification and verification.
The biggest problem with most tracking cookies is the quantity of them. As you have noticed you can pick up hundreds in a day and over time the shear quantity of them can cause problems.
Get yourself a drive cleaner (temp files/ cookies) such as CCleaner. With CCleaner you can also set those cookies , like your banking cookies , to be passed over during removal.
CCleaner.com (run it several times a week or even daily)