I was never able to take that step. I always asked myself these 'what if' questions and ended up keeping the car just in case. Eventually I did make the move, but only because my car was hit by a drunk driver and I ended up just choosing not to replace it after the insurance company declared it a 'total loss'.
I will say that it's pretty easy to make due with just your bike once you take the step. You tend to think a little differently about how you travel, but your lifestyle does not really suffer without a car. I will say that dating is a lot more complicated, but that probably is not a factor for you since you are married.