When I used to live in LA I used to be so dependent on my car, not to mention the hassle of finding parking wherever I went. Since then, I got rid of my car and have lived in SF, NY. I haven't had a need to own a car in any of these places. Public transportation in SF and NY are really great and whenever you do need to make that trip out to the suburbs or have to make an IKEA run, there is always Zipcar. Zipcar works really well in SF.

I'm walking more, which is healthier, have no need to find parking, which is less stressful, and no need to pay loan-payments/gas, which saves me a ton of money every month.