Mine is 1st Jan, not much diff from yours. What I am doing is e-mailing people for their avaliability and for those who can make it, asking them for their mailing address. So far, over 1 week, I have about 50% who responded over e-mail and the remaining had to be asked over SMS. I plan to send out all the cards by end of next week and on the second week of Dec, to call everyone to reconfirm. Since singaporeans are really spoilt and if you don't call then, they will not feel important and not turn up!