These days Christmas cards are so clever and beautiful, I find it difficult to throw them out.  I save my favorites and turn them into gift tags.  Take the smaller cards and cut off the fronts or cut a pretty scene out of a large one.  I have a small cutter that I purchased at a craft store that rounds the corners, then using a hole punch, punch a hole in the top for hanging.  Ta da, why buy gift tags when you may already have the supplies at hand to make your own