NAPERVILLE, IL — Diane Kowalski, 47, quietly retired Tuesday from one of the longest consecutive volunteer positions in the American household sector, packing the final school lunch of her eighteen-year run with a ceremony attended by no one and observed only by the family dog.

The occasion was marked with the uncapping of a permanent marker to write “Last one ever” on the outside of a brown paper bag, followed by a moment of silence that lasted until the coffee maker beeped. Her youngest, Connor, 17, collected the bag without looking at it, said “thanks,” and left through the garage door.

“I counted. Four thousand, two hundred and eleven lunches. Give or take. I used the same heart-shaped cutter for the sandwiches since 2009 and nobody ever mentioned it once.”

“I’m not sad, I’m just—” said Kowalski, pausing in a way that suggested she was sad. “It’s a chapter closing. That’s all it is.”

Her husband, Greg Kowalski, 49, confirmed he had no idea this was the last lunch, the heart cutter had been used this whole time, or that a running total was being kept. “I assumed we just had a lot of bread,” he said.

Connor was reached by phone for comment and confirmed the lunch was fine, same as always. He did not open the bag before eating.

At press time, Kowalski had located the cookie cutter, washed it by hand, and placed it in a labeled Ziploc bag in the memory drawer — next to Connor’s first lost tooth and a birthday card he made her in second grade that she has read approximately four hundred times.