Today, I learned that return addresses are put on BACKS of envelopes outside the United States. Heck of a way to discover that. I'm guessing a lot of players (like I did with the first letter on the final day) will automatically void everything at that point, wondering why they're being told it's incorrect to do so, not even knowing they CAN flip envelopes over (I'd discovered that accidentally earlier). Nice little game, though the interface is a bit wonky (it seems random whether clicking an edge will flip something/turn a page or not; it's obnoxious that the text boxes from the customers cover the weight display until they disappear) and that cultural difference (which I'm guessing you had no idea about, I certainly didn't) will unintentionally stump a LOT of players.