Here are my five:

20. Your money may be her money, but your FAK is not her FAK.
19. A donation to the ETS Foundation isn't a waste of money.
18. You have your "own" large closet, only because that's where all of the emergency supplies are.
17. When the stuff hits the fan, you'll both be on the same wavelength.
16. Her definition of "roughing it" is really close to your definition.