At my 20-card class last weekend, half of the 10 designs were Christmas. I love starting Christmas in July!
I used the Holiday Home stamp set (now retired) for this card, starting with a Whisper White card. I sponged the rectangle (and circle) with Night of Navy, and used the same color for the sentiment. The sleigh and reindeer silhouette is stamped in black ink. I CASE'd this card from http://blog.thecraftyowl.co.uk/.