I just worked it out today that if I didn't have this lease and was able to be in the car share, I would have only spent $200 (counting the days I actually needed to drive for work) this year instead of $600, even more with the other months I took over the lease. And this is in the winter with the few times I actually had to drive. I could have probably taken transit on almost every day I drove anyway.
I barely ever drive it and still pay for it on the off chance I need it. When I get rid of this car I am going to take the money I save and do something fun with it, besides paying the Sallie Mae the bloodsucker (what could be better?).
Too bad I can't car share yet, I've had a license for less than the two years you need. Has anyone had experience with Buffalo Car Share?

I knew how to drive very well. But then I drove on the opposite side and I learned I couldn't undo all the years of experience. So I just gave up driving and haven't had a car since forever. Can't say I miss it. I pick work and commutes that are intentionally car free. I engineered my lifestyle so I wouldn't ever need a car.
You need more practice too. Maybe you should practice while you still have a car before you become another (e:hodown) who doesn't know how to drive.
No experience with Buffalo care share, but I have experience with Zipcar in Baltimore. It's freaking awesome, and I would recommend it to anyone. Baltimore suffers from a car culture mentality very much like Buffalo does, and I will never understand that. It is totally possible for most (OK, maybe not all people) to commute to work on public transportation and use a car share program on those occasions when you go shopping at IKEA or need to pick someone up at the airport. At least that has been my experience.