Deck the halls (and the gifts you give) with boughs of holly. And mistletoe. And an amaryllis or two. Greenery boasting red blooms is the perfect way to inspire the holiday spirit, which is why it is the perfect centerpiece for this enclosure card. No watering necessary.
Your Thank You Notes should reflect your aesthetic, whether it's classic, romantic, minimalist or modern. The recipient of said note should know who it's from even before he/she reads a word.