Hope we do have a Christmas singalong glass 
How do people avoid getting involved in Christmas until it's almost upon us? Like Gillr I've made several Christmas cakes, because they have to be made in advance. I started off Raspberry Gin, Blueberry Vodka & Coffee/Orange Vodka back in August so they'd be ready for Christmas. Since July I've been tucking away any clean & crispy £20 notes that come my way for the older gc at Christmas. I bought postage stamps for Christmas cards months ago before the prices went up. I've arranged a Christmas lunch for my aerobics group and a Christmas dinner for the Tai Chi group. I could go on....
Even though mention of Christmas is banned for you until November merlot, I bet all the people you will be providing a fabulous Chrisrmas for, will be glad you cracked on and got it sorted well in advance!