The work that resets a shared space gives the next person an easier beginning.

Whoever puts a room back to zero is doing a favour for someone they will not meet. The wiped surface, the refilled kettle, the chairs pushed in mean the next person starts with their whole attention available instead of clearing up first. That work is invisible precisely because it succeeded. Nobody notices a good beginning.

Leave shared spaces slightly better than the state you would accept for yourself. And when you walk into a room that has been reset, notice it and say so if you know who did it. It is one of the few thanks that ever reaches the person.