We got 9 cards in the mail yesterday, which was a relief because we're still waiting for so many, but one of them just had the names written in! No indication of coming or not coming, and no stray marks that would indicate what they were considering. FMIL is going to find out what the response is (it's her neighbors).
We also had 2 invitations returned to us as undeliverable and unable to forward. One from my cousin (she moved and didn't tell me!) and one from FI's cousin who tends to couch surf in NYC and we don't really know if he actually has a place or not. I'm sending another one out to my cousin, but I feel bad because it probably won't get there until Saturday and my rsvp date is Monday.