As a credit card churner, I spend a lot of timing thinking about which credit cards to get for their sign-up bonuses. However, I don’t put too much thought into which credit card to use for day-to-day purchases. I spend maybe $10,000-$15,000 dollars a year, and don’t manufacture spend too often anymore. Therefore, it has always seemed a little trivial which credit card to use for everyday purchases. For foreign purchases, I use the Chase Amazon Visa (no foreign exchange fees), and I usually use the AMEX SPG credit card for day-to-day purchases, or the MBNA Alaska credit card for places that don’t take AMEX. I’ve rethought how I should manage my credit portfolio…