Ah, keeping cats away from the Christmas tree is a common problem. Here are a few tips:
1. Place a few sheets of aluminum foil under the tree, the sound and texture may deter the cat from climbing it.
2. Sprinkle a bit of lemon or peppermint oil around the tree, cats are typically repulsed by these scents.
3. Consider a scat mat, which is a small electrical device that emits a harmless but uncomfortable static shock when stepped on.
4. Provide your cat with alternative climbing options, like a scratching post or cat tree.