The deadline for our room block is July 2. We were fortunate enough that our block doesn't require a two night stay like almost every hotel in the area does. Our guests live close enough that if they want to stay, they'd want to stay for only one night.
I didn't include an accomodations card with our invite - but on the reception card I included a link to our website where the hotel information is.
The hotel changed to a 2-night minimum right at the same time we reserved our block - but our block was excluded. If anyone wants to book a room outside of the block, they'd have to do two nights.
Can we gently remind people that the block is expiring soon? A facebook post limited to those on our guest list? I feel like we should just let them be adults and if they cared that much they would have already booked it, but I don't want anyone to end up having to drive home late at night after a night of drinking because they couldn't get a room for the night.