Oh and I forgot a detail, probably several, but this one for sure:
BYO table service. If you aren't "from here," you may not know this one, but people here taught us this tradition: Nobody wants to do dishes or throw out mounds of paper or plastic. BYO plate, cup, and silverware to wash in the handy, well-equipped parish kitchen, or take it home dirty to wash it later!
(Of course the first 20 people staying with us can grab a prison tray out of our pantry to tote along, and we probably have enough silver, too.)