Yea, Missouri in the wintertime is definitely not what I'd call a friendly picnic. Not exactly anything I'd want to live in. Something will come up though, I'm sure of it!
I saw this on the Oprah show the other day. It would help with the mailbox vomiting. If you want to DIY, here's a list of steps to take. And if all else fails, there's always Junkmail Man.