If you have just bought a new laptop, or a netbook you don't necessarily want to order Microsoft Office, Windows 7 and various other security software packages all over again.
So what is the alternative?
I found this excellent site called Get the Free Version, which, strangely enough, shows you the free version or equivalent of popular software titles.
Instead of Microsoft Office, try Open Office. It's free. And open source. And did I mention it's free?
Instead of Windows, try Ubuntu. Again, free.
And if you aren't keen on forking out for another Photoshop, try Gimp. Strange name, but it's FREEEE!
For more open source windows programs, you could try Opensourcewindows or Osswin.