Goodwill is a well-known nonprofit organization that accepts a variety of donations, including gently used clothing, household items, and furniture. However, they do not typically accept Christmas trees. Some Goodwill locations may accept artificial trees if they are in good condition, but it's best to check with your local Goodwill for specific guidelines. It's also worth noting that many cities and towns have their own tree recycling programs, so you may be able to find a more suitable option for disposing of your Christmas tree.