I had written before that I have a Citibank Dividend MasterCard. One of the benefits of this card is that it offers 5% cash back on rotating categories of merchants. The main problem I have with this arrangement is that I always forget which categories are currently offering 5% cash back when I am at the store. As a result, I often miss out on the bonus dividend dollars. In order to help me remember, I have decided to post the categories which change every three months here.
Q2 2017: Drugstores, Fitness Clubs
Note that "Q2 2017" means from April 1 - June 30, 2017. Also note that even if you have a Citi Dividend Card, the enrollment is not automatic. You have to login and sign up for this offer at the Citibank website.
See also Discover Card Q2 2017 Cashback Bonus Categories