I just coded a nice little piece of code that will delete all of your cookies and temporary internet files (even the ones IE7 and Firefox don't) and all of your "Recently Used Documents" history.
And yes, before someone says it, this can all be accomplished very easily through various dialogue boxes in windows. I made this program, though, because it makes it much easier to do (being in one location) and your can have it run at startup.
It also has a very nice icon
Here