You can start by looking at all of the people you need to buy for and setting an individual limit, as well as plan for things like Christmas decorations, food and more.
Instead of leaving the Christmas grocery shop until the last minute, why not start now? Adding a couple of items a week, especially treats or alcohol can help you spread the cost.
Remember that Christmas is about spending time with family, not how much you spend, so whatever you do this year, creating special memories with your family is at the top of your list!