My response is definitely colored by my experience. You own all real estate ? No mortgages ?

Who will make medical and financial decisions in case you are both alive but incapacitated ?

Not sure how cars can automatically go to the surviving spouse but that was about the only issue I didn't have to deal with.

Each have credit cards in your own names ?

If you are dead and she is not, will she know where everything is and what to do ? Will she have access to enough money in her own name to pay bills for a few months ?