I have a new Marriott credit card. (Switched from old chase one for one with better attributes)
My wife had a supplementary card linked to my old card.
I signed up for a new card and cancelled my old one as the ofer is most luctraive
free night yearly
5 points per dollar at Marriot hotels
15 nights towards status per year
1st year no fee
All very good and now wondering if my wife should apply for the card to instead of having a supplementary card of mine