I'm getting ready to send out our invitations and will be hand delivering them to the post office in person. Are there any special requests that I need to make at the post office for mailing out wedding invites? I heard that you should ask them to individually stamp the envelopes instead of running them through a machine to prevent any unnecessary markings. Is there anything else that I should ask about? I know our invitations are bound to get marked up or even lost in the mail, which is out of my control.. Hopefully they will be delivered in good condition though.