I do wish it was possible to be notified when somebody wants something that we actually have rather than having to visit towns to see what people need and then finding out we don't have anything to help them with. Or at least have that as an option. When I visit towns I do frequently see them needing several items of the same thing that I can grow/produce quickly i.e. bread, sugar etc, so can do that for them, but I wish we could also get a notification when we've produced something that someone needs i.e. you've just produced some milk and you get a pop-up to say that your friend xxxx needs it etc.
Just a thought :-)