STDs are not required by any means. If you have OOT guests you want to be sure are there, you'll want to give them the heads up, but that can be done via phone or email instead of a formal STD.
I agree with Drama Geek... Another Unless - is if you are having a destination wedding like me. I did not want to waste money on them, but finally caved because of the destination aspect.
Re: save the dates
I agree with Drama Geek... Another Unless - is if you are having a destination wedding like me. I did not want to waste money on them, but finally caved because of the destination aspect.