Sunday’s newspaper was clogged with flyers from most of the major retailers in my market; Macy’s, Walmart, Target, JC Penney, Sears, Kohl’s and Kmart. The first six listed all devoted at least some space in their sales flyers to their respective cause marketing efforts. Conspicuous by its absence was Kmart.At left is the cause marketing campaign from Sears called Heroes at Home Wish Registry,