Tools---Options----delete history---delete cookies----delete files. there ya go.

on another note, you can download a free program called "easy cleaner" that wipes out your cookies, IE history, temporary internet files (which are just clogging up space, they have no use other than letting the cops take a look inside). if you find a site that says you pay for it though, don't touch it. those guys are thieves who stole the program from the original designer who wanted it to be free.