Based on my Northern California Safeway supermarkets, but probably true elsewhere as well: All gift cards normally earn 2X rewards points. Occasionally, there will be offers like the 10X points on all gift cards (as contrasted with the offer above, which is for a small subset of the GCs sold at Safeway). I frequently buy Amazon and sometimes Starbucks GCs at Safeway (occasionally others as well). These days, I mostly use the Safeway rewards for groceries, although in the past (esp. when the program was only for gas rewards and I was driving a lot more) I used them for gas discounts.