What's one of the first things you do when you're in the grocery store shopping for items that you know you want the freshet date or the most-further-out expiration date? You pick up up that item and look for the numbers.
You can pretty much go into any retailer and you're going to find something "Christmasy" for sale. Whether it's decorations for the tree, wrapping paper, or anything else that's "Christmas themed" you should be able to find it.
As you get older one of the first things you find out is that sleep is your friend and naps are your BEST friend! Now for me, the lack of either can play out to make your next day after a sleep-deprivation a very long day.