Dear Liz: You’ve advised people that “it’s important to keep your credit utilization down, even if you pay in full (as you should).” That may be good advice regarding one’s credit score, but there is another perspective. Although we pay in full every month (and have paid no credit card interest since 1971), charging almost every purchase or expense has earned us three pairs of round-trip frequent flier miles tickets to Paris — one pair first class and the other two business class — in the last 15 years.
Answer: Maximizing rewards shouldn’t come at the cost of your credit scores, particularly if you want to qualify for future cards that offer tempting sign-up bonuses. You can continue to charge away, as long as you either spread the charges across several cards or make two or three payments every month on each card you use to keep the balances from getting too high.