Before you chuck your Christmas tree to the curb, consider using it for other, more eco purposes. You can, for example, get the tree turned into mulch and use it for bedding or edging in your garden beds. Or, better yet, you can use it as a habitat for birds. Simply prop your tree up in the backyard, either still in its stand or leaning against another tree or fence, and leave it for the birds. Make your tree extra tasty by...