Sign up for the Citi Platinum Select American AAdvantage Visa Signature Card and get 30,000 bonus miles, which I value at about $600, when you spend $1,000 in the first three months. You'll also earn 2 AAdvantage miles for every $1 you spend on American Airlines purchases and 1 AAdvantage mile for every $1 spent elsewhere. More importantly, the first eligible bag for you and up to 4 companions will check for free, saving you hundreds or thousands throughout the year, and you'll get priority boarding. You'll also get a $100 American Airlines flight discount for each year you renew your membership and spend $30,000. Your annual fee of $95 is waived for the first year.