If you don't want anybody, be it your colleagues, family or somebody else who has access to your computer, know what sites you've been visiting, you can go the hard way - delete your browser history, cache, cookies, etc. manually - or let Internet Sweeper do it for you.
     Internet Sweeper is a smart program that lets you clear your surfing logs from any browser you use. This is good news for those who don't stick to a single browser, for example, Internet Explorer, but use Netscape Navigator and, say, Opera too. Things to wipe out in each browser, installed on your system, are listed separately. So, under IE heading you'll have, among other items, 'AutoComplete' and 'Passwords', while under Opera heading you won't have those but see 'Windows' instead.
     The tool allows you to clear system history too - Recent Documents folder, Favorites, Temp directory and more. It also can close popup windows, run and wipe out your browser cache on startup and do other useful things which you had to do manually before. Download this free tool now and see it for yourself.