Why Martha Saved Five Hundred Paper Receipts From Her Weekly Grocery Trips

and she looked up at me with wide, worried eyes as I approached.

I waited until the lane was clear, then stepped up to the counter and looked her straight in the eyes.

“We are going to find out what those machines are doing,” I said.

The following Tuesday at eleven, I stood in front of lane six with a three-dollar-and-forty-cent gallon of whole milk continue reading …