Flat-rate or bonus categories, how cash back is paid out, and which pattern of spending each type rewards.
Flat-rate vs category cash back cards: which earns more?
Flat-rate cards pay one rate on everything; category cards pay more in a few places. Example math shows which wins for different spending patterns.
One email when a guide is worth reading
New card-type guides and the rule changes that affect what you carry. Unsubscribe any time.