If not, don't worry.
And if you did, chances are they're languishing in the mountains of others, they got a quick glance and a nod and will soon be forgotten.
So, send a New Year card (even if you sent a Christmas one).
They're lot less common to get (at least here in the UK they are).
Write a stunning message.
Making sure it will be remembered.
P.S. Ah ha, you're thinking of sending an e card?
No, please don't - send a real one. It'll have a lot more meaning and impact.