Christmas tree decorations are arguably the most important part of the whole holiday decorating process. Christmas trees are like the face of the season and everyone, including the people outside of your home, can see whether or not you’ve put one up. A well-decorated tree is not only a statement piece, it's a beloved tradition that dates back 1,000 years. It was a little different back then, though: Instead of standing upright, Christmas trees were hung upside down from the ceiling by chains. Whether you’re decorating an upside-down Christmas tree, a Charlie Brown Christmas tree, an outside tree, or a traditional Christmas tree, you'll need decorations, which is why we've rounded up a bunch of our favorite Christmas tree ornaments to add to your collection.