CPYB SI packing list?

Since CPYB doesn't send out a packing list, I need some advice on packing. What should I bring? Is their anything most people don't normally bring that is helpful? How should I pack it most efficiently? Should I mail/buy certain things at the SI? Any tips are very appreciated, this is my first SI and I'm have NO IDEA how I'm going to fit everything in my suitcase! Thanks in advance!