Do this now: register for Discover 5% Cashback Bonus
/Via @Drofcredit, I saw yesterday that registration is now open for the Discover it (and More) first quarter Cashback Bonus. Between January 1 and March 31, 2015, you'll earn 5% cash back at gas stations and when paying for "ground transportation" with your Discover card.
As I learned to my horror earlier this quarter, Discover will only award 5% cash back for charges made after registering for their Cashback Bonus offers (as they dutifully point out in their terms and conditions).
I've also updated my permanent cash back page with information about all the 2015 cash back bonus categories announced so far.