1. Start by picking a theme for your tree. This can be anything from a traditional red and green color scheme to a more modern white and silver or colorful rainbow theme. 2. Choose a focal point. Whether it's a special ornament or an heirloom piece, this will be the centerpiece of your tree and the piece that catches the eye. 3. Add a variety of ornaments, both big and small, in a mix of colors and textures. Hang some ornaments closer to the top of the tree, and others further down, to create depth.