I have found that it is worthwhile to check my AMEX account frequently under the "Offers for you" tab. AMEX is always offering discounts for purchases from certain retailers. I personally have saved $100 this year already - all on purchases I regularly make anyway. Some of the offers I have taken advantage of recently include: $15 off $75 purchase at Walmart.com (gift cards included) $25 off $75 purchase at Staples (gift cards included) $10 off $50 purchase at Lowe's $10 off $75 purchase at Whole Foods And right now AMEX is offering $5 off a $25 purchase of gas at the pump at BP stations (and this one is repeatable up until Dec. 31) So, check the offers in your AMEX account. Registering your card for an offer just takes a few seconds, and the rebate usually posts in 2-3 business days after you make your qualifying purchase.