I haven't done Xmas cards for 5 or 6 years now. I was under the weather one year & just couldn't be bothered writing, buying stamps, posting etc. I gave a donation to a charity close to my heart instead. The next year I did the same but for another fave charity.
I wished all neighbours a Happy Xmas personally as I bumped into them, I saw close family anyway and just close friends who don't live around here, I sent a funny Xmas email.
Last year I saw the This Morning Xmas Appeal for Alzheimers Society and they were talking about early - onset Alzheimers and there were people younger than me with it and I figured they could do with a donation in lieu of cards.
It also means that you receive loads less cards each year which just goes to prove that people DO cross you off their list if you don't send them a card!!