Normally I’d have been impatient and irritated. But tonight curiosity got the better of me as I stood waiting in the grocery store checkout line behind a woman with the biggest stack of coupons I’d ever seen.  Yes, I’m an admitted geek when it comes to observing consumer behavior (most of us in marketing are), but tonight I wasn’t the only one watching.  See this woman was making it clear to all those around her that she was getting her entire cart of groceries for under $15. Read More