I am also bound to using a car due to where I live. Fortunately I work from home, and most of what I need is close by so I don't need to use it too much.
Same. I ride my bike places when it's feasible, but I live a few miles from anything. A bike ride into town implies at least 20-30 minutes of sweating, which means I have to drive my car more often than I'd like. I have a plugin hybrid that gets about 30 miles without burning any gas, and that gets me most anywhere I commonly need to go, so there's that at least.
The bike I own is a mountain bike. I could buy another but I don't really need to. I have to cross an interstate highway to get anywhere useful, which is the real problem.