Welcome to the forums!
I've got a lot for the holidays already, most of it though are things that I always try to stock anyway. I got sugar on sale several months ago, I bought 20 lbs and still have at least 15 lbs left. I bought a 6 lb bag of chocolate chips too from Costco not long ago . . . they have the best price in my area for them and also they had a coupon for an additional $2 off. I use them year round but also a lot at Christmas. I also bought from Costco a large bag of sugar cookie mix, it was around $5.50 and makes 15 dozen cookies. That I bought for us to be able to make cookies with cookie cutters whenever the mood strikes. I like to bake with the kids (mostly DS as my DD is still a little young but does love "helping"!)-it's a great activity for rainy, cold winter afternoons.
Just today, I bought 2 bags of all purpose flour on sale. Name brand for $2.50 for a 5 lb bag. That's a good price here-I might grab another one or two before the sale ends.
Otherwise, I can't think what else I might need. I'll definitely buy cranberries when they go on sale for the freezer. I love having them available to make sauces, muffins, breads, etc.
I do need to start thinking about non food items-ribbon, baskets/tins, etc. Need to start organizing myself!