Tomorrow I'm going to spend a couple of hours on the streets of Birmingham trying to give away software. I hope that the conversations I will manage with the passers-by will restore my somewhat jaded faith in the common-sense of humanity.
The software I use - free and open for most things I do - is superb. It is reliable, efficient and interesting. Whenever I have to use proprietary software, as I do occasionally for my work, I feels like wading through treacle.
If you haven't tried Free Software, then I invite you to try FireFox or OpenOffice - and if you want to really liberate your computer, try Puppy Linux!