Sending care packages to friends!!!

We seriously need the ability to send care packages to friends in the game - like for in their single player worlds. A mail box or shipping method idea. So I could send a friend, say, a stack of cooked beef or some good enchanted tools to help them if they have just started out. Obviously limits would need put on - like maybe only able to ship something once a week, or limits on the amounts sent, I don't know. Could even add the ability to send to random players, improve the social aspect. But yeah, being able to mail stuff to friends would be so cool. Could all be done through Microsoft accounts, could include written notes or voicemails even!