Bought in 2003 for $13k with 24,000mi
136,000+mi
45mpg avg (EPA 41mpg)

I'm very happy with it. I would buy again. I'd actually buy new if they come out with a 40mpg hybrid minivan.
Three other people have bought hybrids because of my experience.

LibraryThing is good for this application. It's free, easy to use, has a nice interface, and if you ask politely, you can probably get a group of people to help you enter everything into the site.

It's a great framework that is middle of the road between having everything done for you, and something that barely gives you anything. It can autobuild stuff for you if you tell it to, or you can just implement things on your own.

Number 5 is a must. If you genuinely care for the other person, this should happen automatically. It can still be a struggle to keep it in mind, though.