2, ancient copper coins, copper coins are one of the things that are taboo at home. If copper coins are handed down from ancestors, you can keep them and maybe bring you good luck. If it is copper coins of unknown origin, or five emperors' money, then don't leave it at home. Because most of this kind of copper coins come from ancient tombs, heavy yin can generally gather souls, and wealth can't be gathered, which will lead to bad luck for the owner.
3. cactus, it is normal to keep some plants at home to purify the air, but some plants are not suitable for keeping at home, such as cactus. Many people like to keep some cactus with strong viability at home. In fact, from the point of view of geomantic omen, prickly cactus can destroy the gas field at home and make the wealth leak out. Except cactus, other acupuncture potted plants can't be placed at home. It is best to put evergreen and other mellow plants at home.