Not a seasonal marketer.

My CRM may send them some sort of greeting.

Our office has "open house"  for three weeks of December when we invite past clients to stop by for coffee or hot apple cider and snacks and give them a small gift.  It's usually about 300 or so people that pop in during that three weeks.  And we always have some branded items that we give them.

Pearls for the Soul books of positive and uplifting sayings...Its memorable, appropriate all occasions and lasts as long as the persons involved

I used to send out CHRISTMAS cards.

"Past" clients may be clients for life or merely a one-time opportunity.  The exchange of "things" can happen seasonally,  for special occasions and sometimes in many ways.  Meaningful and perhaps easy-to-forget.  

Yes, I mail out holiday cards. 

Some of them will receive a Christmas wreath delivered fresh from the farm right after Thanksgiving. It serves a second purpose as this is a fundraiser for my Rotary Club.  

I send out Christmas cards and New Years cards.

old builders of mine will get a very large edible arrangement delivered....

Yep, I leave them alone between Thanksging and the New Year.

Sometimes a holiday party - this year it's just going to be a card.

I do nothing special for Thanksgiving, Christmas and the New Year except smile and give good wishes to all.

Not in years. Along time ago I sent out Thanksgiving cards. When they became popular, I quit!

Yes. I leave them alone and let them enjoy the holidays. 

My personal agent just sends an email for Christmas. This November and last he has sent a mailer with pie options from Costco. You let him know the flavor and then pick it up the Tuesday before Thanksgiving in his office. Clever as it gets him in front of you twice - and for sure once in person and he has us coming to him. The pies are $5.99 at Costco but it feels like a big gesture. I was out of town last year and will pick on up from him this year - even though I still have to get other items at Costco. 

It really depends, no one size fits all. A

Nope, unless you call Christmas cards doing something?

Not a part of my market plan.

I'll send a card. There was a few years I'd send tins of cookies to the people who purchased during the year. There were very few people who even acknowledges receiving them. I decided a card will suffice. I just got the final draft of my Christmas card and will be ordering them soon.

No.  Not relevant in my business model.

No, for New Year.

I had a few of them just visited us in Miami.

They will appreciate a personal note.

yes