Just bought a raffle ticket from my high school online, and got this email: "Your payment has been APPROVED. Thank you! We recommend that you keep a copy of this email in a safe place. It may be your only record of this transaction."
[Kristen wisely suggests THE INTERNET as a safe place. I agree.]
It reminds me of Gmail Paper, though! Remember that? I remember this being a big topic of conversation among my friends.