Avoid Temptation by not even Looking at those sales papers. If you don't Need any furniture or linens, why look at the sales for them and get tempted and spend money? Same thing for toys for kids and adults, and clothes, and food, and Everything. If you are not ini need of something, Avoid the ads!
You can also sign up for getting off of junk mail lists, and then you won't have as many ads coming into your home to begin with.