Well, let's see. First, you'll need a saw, preferably a handsaw or a chainsaw. Next, you'll want to find a suitable location for cutting the tree, one that's away from other trees or buildings. Then, you'll need to locate the base of the tree, usually the trunk, and make a mark with a pencil or chalk. Finally, you'll want to slowly and carefully saw through the trunk at the mark, making sure to keep the saw straight and level. After the tree is cut, you can then transport it back to your home and decorate it.