One of my most favorite things is the free genealogy software, called Personal Ancestral File (PAF), that the Latter-day Saints gives away. I have bought and used other software, and this one is just as good or better than those that I have tried. I've used it for years and I have never had a problem with the software. Not only that, but I can download it on any computer and easily reinstall it if my computer crashes. If I help anyone with their genealogy, they can download the software for free and I can send them a file that they can open up on their machine to add to it. For a small fee (less than $10), you can download the charting companion to use with the free software. It makes beautiful Martha Stewart type family trees that you can frame or give away as presents.
For more "Favorite Things," check out Sarah's blog at Fiddledeedee!