To disassemble a Christmas tree, begin by removing any ornaments, garlands, or lights. Next, remove the tree skirt and any other decorations. Then, carefully loosen the branches from their stems and take apart the sections of the tree, starting with the top section. You can use a screwdriver to remove the screws holding the sections together, if necessary. Once you've removed all the sections, you can store the tree in a safe place until next year.