Later in the article, it mentions that Target got smarter with these. Instead of just sending coupons for diapers and such, they would send coupons of diapers i

Later in the article, it mentions that Target got smarter with these. Instead of just sending coupons for diapers and such, they would send coupons of diapers interspersed with coupons of, say, lawnmowers and chainsaws. In other words, they would use the same customer database to send coupons that they knew the customer wouldn't want, just to through them off the scent.