"I've got a cunning plan, my lord!"

As some may know the 16th of March is creeping up to us day by day. Now I was planning to throw a party but I'd love to have some input on it first. Any comments/suggestions?
Whether it should span the whole weekend or merely that Sunday? Whether to watch anime indoors or outdoors (at the Melkweg that very day)? What should be done for entertainment? What food/drinks to bring (as I recall some of you people had allergies)?
All input is appreciated!