Switch your Discover More to a Discover IT for better cash back and lower fees
better rewards: (same category bonuses, but with 1% cash back from the first dollar instead of after 3k)
and lower fees: waived overlimit fee and fee for first late payment, lower interest rates.
Phone in to switch, no credit pull.
If you don't have a Discover More card, consider holding off on applying for a Discover IT until there is a cash bonus offer.