To dispose of a Christmas tree, you can either recycle it or reuse it in various ways. Recycling involves taking the tree to a designated recycling center where it can be chipped and turned into mulch for landscaping or composting. Reusing the tree can involve decorating it with non-Christmas decorations, using it as a natural fence or boundary marker, or even converting it into a shelter for birds or small animals. If you don't want to keep the tree, make sure to dispose of it in an environmentally-friendly way.