If you have any money left over from Christmas, then here's a book suggestion. Fr. Andrew Damick's Orthodoxy and Heterodoxy. It's an excellent summary of the every conceivable variation of Christianity and other world religions in comparison with Orthodoxy. It is well-written and you don't need a seminary education to understand. I would easily recommend this book to any high-school or college student trying to understand their faith.
Have you heard the theory about the date of Christmas? That Christians co-opted a pagan festival for their own purposes. Here's a great article questioning that popular notion: Calculating Christmas
Even if we did adopt a pagan celebration, this article artistically says "So What", and proclaims that "Christmas means that the unconquerable god of the Romans just got conquered. A pagan Roman holiday just got stuffed with more Christianity than a December Turkey stuffed with spiced bread crumbs."
And since we are only a couple days into the feast of Christmas, here's a final article reminding us of when and how long this celebration is: When is Christmas Anyways?