If you would like a genuine spiritual experience, here’s a suggestion. Next time you’re out and about on a Sunday afternoon—let’s say you’re coming home from church—and you stop by the local supermarket or big box store to “pick up a few things,” do this: When you enter the store, pause for a moment and take a deep breath. Then, pay close attention to the nearest end-aisle displays and all the nearby signs with the word “Sale” on them (preferably the insistent ones with excla