I am running an experiment. This is how my desktop looks:
As this illustrates, I am trying to run only open source (and free) products on Windows XP. I use OpenOffice for my office documents, Firefox (1.5 is out now!) as my browser, Thunderbird as my email client, and Sunbird as my calendar.
I don’t miss Word, PowerPoint and Outlook the least. The MS Office install-CD sits in the CD-tray, but I have not once felt a need or urge to install it.