I'm trying to figure out what the etiquette is for transportation after our reception. Most of our wedding party is from out of town (the bridesmaids are all within driving distance and a few of the groomsmen are flying). There will be a complimentary hotel shuttle picking people up from the reception, but it only seats 9 and there will be a few other guests staying at the hotel. We were considering going to a nearby bar afterwards (less than a mile away), but of course nobody is required to come. Am I required to provide transportation for the wedding party, or are they basically on their own? What about ushers? Since most of our bridal party is married/engaged, the head count would be 20 people.