Well, even though an operating system is somewhat software, i figured, usually free software is free because you download it, not because you can either download it, or request a free CD (or several) to be shipped to you for free, so I placed it here, in the other free stuff category.

You can find out more and request your CDs at: https://shipit.ubuntu.com/

FAQ for shipit: http://www.ubuntu.com/getubuntu/shipit-faq

Heh... a hint of advice... don't order a bunch just because they're free. Sweet at first, but they will end up collecting dust on your shelf for years. Not that i'm speaking from experience or anything...