Oh yeah, I have a Chase Freedom too. However, you might want to check out Chase Sapphire. They have a nice signup bonus, plus it's 2% points on travel (hotels, rental cars) & restaurants, so when that 5% isn't on, it helps. There is an annual fee on that one though. However, if you use them to book travel with points, it's 20% off. For instance, I rented a car last week and it was a 50 something dollar charge, but I used 40 something dollars with of points, and yes you can use the same cash back system as Chase Freedom, as they are both ultimate rewards points, and you can move your points from one card to another at will.
Good choice with the super market...that's always a great way to cut costs on travel, even if you just pack a lunch here and there and eat breakfast.