Rewamp the postcards

I would love if you could rewamp the postcard-system so that my Sims could send postcards home when visiting other worlds. Either just by using a postbox at a house, or even better - in a postbox for such use in the world. It feels so strange to hussle for postcards through the computer, but if my sim could send postcards to themself or friends, and collect them, that would be awesome!