When I moved (about three months ago), the agent gave me a bottle of well-chilled prosecco along with the keys.
Quite apart from having lots to do, it was too early in the day for booze. I just put it in the corner of the kitchen before returning to my old house (where all my stuff still was for another week or so before the actual move). It's still there, awaiting an excuse to open it. On a couple of occasions I've had dinner guests and served them something better, such as regular wine suited to the dinner.
Maybe I should take it to the next bring-a-bottle event where I can offload it anonymously?