Costco will have two coupon books in March of 2017. First of all, there’s what we called the February 2017 Costco coupon book, which runs through March 12th. Secondly, there’s the March and April 2017 Costco coupon book, which will run from March 23rd through April 17th. You’ll notice it’s quite different than the coupon books over the last few years. Overall, there are a lot of changes to the Costco coupon books, so make sure to click through to read all about them. It will help explain the change in coupon frequency, the change in coupon book size, and more.