Now is the time to start your homemade Christmas stationery! I have a pile of assorted used greetings cards (mostly Christmas), front part only - I have cut off the greeting half that's been written on. May be useful for crafting your own Christmas cards, gift-tags, tokens, etc.
Here's an idea for sustainability: if making your own cards, attach a small sheet of paper on the inside with a paperclip, on which to write your greeting, etc. Encourage the recipient to re-use the card next year in likewise manner. Everyone saves money, the planet saves trees.