Draping ribbon on a Christmas tree is an easy and effective way to add some extra flair to your holiday decor. To get started, choose a ribbon in a color or pattern that complements your tree's existing decorations. Next, cut the ribbon into strips of varying lengths, typically between 2 and 4 feet long. Then, start at the bottom of the tree and work your way up, weaving the ribbon around the branches in a cascading fashion. You can add as many layers as you like, depending on how much ribbon you have and how much you want to cover the tree.