What you deserve.....
Well, we'll save that for chat.
Using Internet Explorer, click on the Tools Menu (up at the top, says 'Tools'), click on 'Internet Options', select the 'General Tab'. Under 'Browsing History' click on the 'Delete...' button.
Next to 'Temporary Internet Files' hit the 'Delete files...' button and click 'Yes'.
Do the same for the 'Delete cookies...' button. Then click 'Close', at the bottom, then 'OK'.
Using Firefox, click on the Tools Menu, click on 'Options...', click on 'Privacy' along the top row, then click on 'Show Cookies' and then 'Remove All Cookies'. Click on 'Close', then 'OK' and you're done!
Good luck!
WARNING!!! This procedure will not remove cookie CRUMBS from the keyboard! You're on your own for that.