In August 2014, we moved from the Washington, D.C., area to Somerville. After we unpacked, we gave away the surviving boxes on Freecycle.
Fast-forward to our next move, in December 2015. “Wanted: larger moving boxes” we posted on Freecycle. The next day, we were picking up half a dozen boxes from a nearby porch.
One of them had our handwriting on it: It was a box we’d used to move up here, reused at least twice in the interim. What goes around comes around.