Oh yes, I even have the "I Believe in Santa" hat that I wear every year .

DD (10) seems to be on the cusp of working it out, she asks me and I've answered (very vaguely) about the magic of Christmas and how I believe in the "magic of Father Christmas"...*sigh* She's taken to keeping the letters they leave and comparing handwriting samples so it's getting harder and harder every year! LOL This year Santa's gonna be towing his trailer half way across Australia in the week before Christmas so there might be some secrecy issues there! LOL