No ask, no tell. Keep low key.
Not necessarily tell everybody that you and your spouse are working in the same place.
Be professional, do not let any issues on one of you impact other of you.
Enjoy your car pool!
Enjoy your double health insurance.
Theses are all good things.
The only bad thing is: 如果你俩在家吵架了,就没处躲了.
Thanks!