In August I found a sock I'd lost, and had assumed was gone forever, only to discover that it had gone down the back of a drawer. (I'd taken the drawers out to make it easier to move the furniture to another part of the room, which is when I made the discovery.) Trouble is, I'd already disposed of its counterpart, so it was no longer of any use to me. (I still have both legs.)
Happy Christmas, everyone.