TPG’s 10 commandments of credit card rewards

Whether you're a novice or a full-on expert, there are key tenets to follow if you want to successfully navigate the world of credit card rewards.As the saying goes, "Everyone makes mistakes," and the points and miles game is no exception. Even seasoned pros can slip up, resulting in missed rewards, lower credit scores or extra money out of pocket.Here are my 10 "commandments" for travel credit cards to help you avoid some of the most common mistakes cardholders make.CommandmentWhy it's importantPay your balance in fullIt avoids interest charges that negate the value of your rewards.Don't miss a paymentYou may incur a late fee, and it may impact your credit score.Don't rush to cancel a cardIt could lower your credit score.Don't lose your rewardsCanceling a card may nullify your rewards.Don't let your rewards expireYou may let hundreds of dollars in value go to waste.Don't miss out on a welcome bonusYou could sacrifice thousands of dollars in value by misunderstanding the timeline or what does (and doesn't) count as eligible spending.Maximize category bonusesAligning your card(s) to your spending habits allows you to make the most of every dollar you spend.Don't ignore cards with an...