You'll earn 6% back at U.S. supermarkets on up to $6,000 a year in spending, plus 6% back on select U.S. streaming services and 3% back at U.S. gas stations and eligible transit. Terms apply. The ...

Costco members can turn their everyday spending on gas, travel and dining out into rich rewards at the wholesale club, but you won't get big discounts at the store itself. Costco loyalists can ...