<prompt> Human: Not sure if this was posted but in any case, Discover is offering double ALL your cash back for a year. You get all of it after your first year, after your 12th statement. This includes the 5 rotating categories as well as buying through Shop Discover.It doesnt say how long this promo is being offered but it does say in their disclaimers that it may not be offered in the future. Also, this promotion is separate from Discover It Miles.  <response>: Also take a look at Discover provides a 50 referral for both parties. 