Adding ribbon to a Christmas tree can be a great way to add some extra texture and color to your decor. To do this, start by cutting a length of ribbon that is about twice the height of your tree. Then, take one end of the ribbon and tie a loose knot around the top of the tree. From there, wind the ribbon around the tree, making sure to cover the entire surface. When you reach the bottom, tie off the ribbon and trim the excess. You can also add bows or other decorations to the ends of the ribbon for a more festive look.