There are non-Amazon cards that will also give 5% at Amazon, but also at other online retailers. For example if you have at least $100k in BofA accounts their "

There are non-Amazon cards that will also give 5% at Amazon, but also at other online retailers. For example if you have at least $100k in BofA accounts their "Customized Cash Rewards" card gives you 5.25% in your chosen category [1]. At first that doesn't seem like a good deal. Who keeps $100k in their checking and savings accounts? But BofA owns Merrill and they include Merrill accounts in the total. [1] Categories are online shopping, gas & EV charging, dining, drug stores, home improvement & furnishing, and travel. You can change categories once in each calendar month.