Using these Custom Metal Halloween Signs is a breeze. For indoor use, you can hang them on walls, doors, or place them on shelves. Outside, they can be easily attached to fences or trees. When choosing a spot, make sure it's visible to create the best effect. As for care, since they're made of metal, they're quite durable. But if they get dirty, just use a soft cloth and some mild soap and water to clean them. Avoid using abrasive materials that could scratch the surface. In extreme weather, it's a good idea to bring them indoors to prevent any long - term damage. With proper use and maintenance, these signs will last for many Halloweens to come.