I do! I love Christmas/holiday cards! (perhaps it came from working at Hallmark for 10+ years!) I design the cards myself (this year with the help of Brook Magee's awesome Halloween template -minus the bat).
I've used several different sites to print them. I like Costco's price but their quality has really gone downhill at our local warehouse. Last year I discovered Amazon Prints and was pleasantly surprised so I'm giving them a go again this year.
I also design cards for my friends. It's fun to put their personality into the cards. One friend has me create a Seahawk themed Christmas card every year. I'm forever grateful to Misty Cato's "Big Game" super bowl kit from way back - I've used every element in that kit
Here's our family card for this season (Melissa Bennett's "A Farmhouse Christmas" kit.