Christmas cards are a wonderful way to show someone special that you're thinking of them during the holiday season. Here are some examples of what to write:
"Sending you warm wishes for a magical Christmas and a happy new year."
"May your holidays be filled with love and joy. Wishing you all the best in the coming year."
"I'm so grateful to have you in my life. I hope your Christmas is as bright and special as you are."
"Thinking of you during this joyous season and wishing you all the best for the year ahead."