Extreme couponers are stealing my recycling. Once I put it to the curb it’s in the public domain, I suppose, but when a black Ford Econoline creeps slowly in front of the house at 3am, it creates unease. Why was I up at that hour? Teething. I tried my first coupon at Costco over the weekend, to see what it’s like. I put it towards a 32-pack of Diet Dr. Pepper. In the days following I’ve had 13 of them, if for no other reason than they are dominating my refrigerator. I found the crumpled receipt from the trip in my pocket this morning; no discounts noted. After all my clipping efforts to arrive at that point, she didn’t even scan it . I feel…