There's a reason 24-hour diners do such great business -- they capitalize off the late-night snack needs of partygoers everywhere! Follow their strategic business model by offering your guests food in several phases. Start off the reception with appetizers, or jump right into the buffet or seated dinner. After your guests have worked up an appetite on the dance floor, present them with special late-night snacks. Some brides might choose to complement the sweetness of the wedding cake with miniature milkshakes, cookies and milk, or a DIY ice cream sundae bar. Others might take a turn with saltier fare, like sliders and french fries or a nacho bar. Any of these casual, fun snacks is sure to re-energize your crowd just in time for the "Grease" sing- and dance-a-long.