This is a really great deal. You've probably heard about the Entertainment coupon books. Through the end of May, you can buy one for $12.99 each. Inside, you'll find a coupon good for 5 % off any non-code-share AA flight costing over $150 RT. Up to six people can be booked at the discount. So let's say you buy a $1000 flight to Europe for 2 people: you save $100. Nothing to sneeze at, especially since you only paid $12.99 for the booklet. And, of course, there are lots of other discounts inside on everything from Big Macs to dry cleaning to movie tickets. Many of the other coupons are travel related, but this AA discount strikes us as the best deal. Details and order online. The $12.99 offer ends, so they say, on May 31.