Lately I've gotten in the habit of sending a friend mail when a new street opens that has a postbox on it. It's a "hey a new street, wish you were here" note. It'd be super cool if we could send postcards with a snapshot of the street on it from these postboxes or if there were some sort of street/area visual postmark on the mail. Or perhaps do this using an object that attaches to the existing mail since right now mail stays in your inbox. And the corollary idea would be the ability to take your postcard or location-marked attached object out of the mailbox and you could then trade and collect postcards from every Glitch location.