Making an art bucket from the back to school supplies is a great idea!
I'd start now stocking up on groceries here and there for baking during Christmas, as well as treats for stockings. My kids are really deprived and rarely get treats from the grocery store. That means stockings are really easy. A 3 pack of juice boxes, a box of goldfish, and some lifesavers, and they are in heaven! LOL. Sometimes, you can find coupons/sales to make these things cheaper.
Last year, at the beginning of the season, I made a list of about 25-30 activities to do during the Christmas season. They were simple (ride around and look at lights; read 2 Christmas books), a little more complex (bake cookies), and a few real highlights (our local free symphony, an annual trip to the tree on top of Macy's, etc). We picked one thing every day, to really extend the Christmas season. It was a lot of fun, and I plan to do it again.
In our family, my kids are pretty easily overwhelmed with a lot of "stuff". So, we try to stretch it out anyway. And, they are only 3 and 1, so they are just figuring out that certain people give them certain toys. Mostly, it just becomes all the "Christmas toys" as one big mish-mash.
So, I wouldn't worry about it too much. Make it more about the experience of Christmas and the season, less about the stuff.