10) Once you move out of the house, no one buys you Christmas Jammies anymore. (At least not snuggle cute ones you can wear in the morning while opening presents)
9) After about 13 or 14, you stop receiving presents you can open and play with between breakfast and dinner on Christmas day.
8) Spending the night at Grandma's on Christmas Eve is great. Helping Santa get the presents to Grandma's without tipping off the kids, not so great (or easy).
7) That happy-carefree-magic-Christmas feeling you love so much about the season, stops once you have children to feel it for you.
6) Family Christmas photos are not only stressful, they are expensive.
5) Eggnog made Grandma drunk when she got run over by a reindeer. She wasn't putting nutmeg in it.
4) Frosty the Snowman and Jingle Bells are not only the greatest Christmas songs ever, they are also the most annoying.
3) Once you have kids, you cannot eat all the Christmas candy, cookies, and fudge you want with out consequences.
2) Your spouse will not stuff your stocking they way your parents did; this does not mean they suck at, they just do it differently.
And the Number one thing my parents didn't tell me about Christmas...
Being a Parent on Christmas is a million times better than any gift you ever have or ever will receive from anyone.