Take care of your guests with hangover relief
The most important aspect, of course, is for you and your guests to enjoy the party responsibly. Encourage guests to either stay in a hotel or arrange for a safe ride home. Consider including instructions on getting a safe ride (hopefully transportation is already planned for the bride). "Chicago, USA - June 11, 2011: Bride is catching a taxi on a wedding day. Bride is standing next to the yellow cab on Michigan Avenue in Chicago."