Thanks for your answers! Luckily, I don't commute. I have a tiny little etsy shop, but my real gig is homemaker. Our new neighborhood is 10 minutes from my husband's office. I do have to drive 15 minutes Weds-Fri to pick up my stepson at school, but other than that, I am able to stay home and go to town 1-2x for groceries, etc...
Once we do shed the car, our plan is to have him take the car to work Monday, Tuesday and Wednesday, come home for lunch on Weds, and then I take the car that afternoon and for the rest of the week. I'm really excited about the idea, because I think it'll simplify things even more, and make us feel less guilty about having 2 cars that mostly just sit in the parking lot or garage.
I appreciate the input, and @nereo, I'm so happy you have had a positive experience! We did this once before, but he had a 40 minute commute one-way, and it just didn't work. I'm so happy to hear of someone who is doing this and isn't constantly fighting for use of "the car".