Best thing you've gotten in the mail?

Whats the best thing you've gotten in the mail? It could be anything funny, rewarding, unexpected etc.

I got my mail late today. As I was sitting at the desk opening it I cam across an envelope from the company who used to handle our mortgage. I open it up and to my surprise there's a check for $1284.86. Something about an overage on the statement. Wooohooo! A refund!

best thing I ever got in the mail, was a letter from a friend of mine, its a funny little thing, i wont go into detail on anything it said, but for some reason it really meant a lot to me, needless to say I have kept it and read it every now and then, and yeah, thats my favorite thing recieved by mail.