The frequency with which coupons mailers appear in your mailbox may seem surprising if you’re the kind of person who tosses them straight into the recycle bin. After all, you might think to yourself, doesn’t it cost money for stores to print those out and send them around for free? And do people really look at them? Well, when it comes to grocery coupons, we want to affirmatively assert that people do indeed look at them. And what’s more, beyond just looking at them, people use them. However, the standard mail version of coupons isn’t necessarily the only kind—and we’ll look at that, too.