Two ways that I know of to ease the stress of a commute.
1.) Buy a ticket. I know this runs against the grain for most of us, but there some amazingly cheap tickets out there if you are a line holder and can plan in advance.
2.) Get a crash pad for you and your wife, and leave a car there. Make sure that it is a dedicated parking lot and not free for all street parking. Legally you are required to register the car there, but many commuters do not. Don't get caught.
Especially if you are both on short call, it will make the whole thing less stressful. I know that it is expensive, but when I was commuting it greatly reduced my stress level.
Joe