Because the weekend (Saturday March 8th, 2008, 10am, to be more precise) is when the conCom 'walkthrough of the hotel' is. This is also the deadline for handing in the room allocation forms.
I've got a document posted that has not only a pretty layout attached, but will also be an ongoing tally sheet of who is bringing what. I hope you all can add your names in when you come up with something to bring; if not, email me or someone who can change things here, through the Personal Contact form. Nothing but mostly praise for it so far, so I'll make it more 'public' now. :)
Saturday morning, before I head off to Detroit, I'll be sure to update the information there with everything I've received, in email, on the mailing list, in person (reliability of recording in descending order), so it's fresh in my mind.