Looking for some great free portable apps to fill up your gigantic USB drive? Look no further than The Portable Freeware Collection. Its mere name, I suspect, has been educational enough, but in case you've got a case of the Mondays: The Portable Freeware Collection is a collection of free Windows software designed to be run off a USB flash drive or other portable storage device. There are hundreds of apps in the collection for every task you can imagine, from media players to security to development. And did I mention they're all free? Definitely one for the bookmarks.