December is just crazy when it comes to shopping.  Parking lots are packed.  Your porch is littered with deliveries.  You have relatives and friends on lists you check way more often than Santa does, just to make sure you aren't forgetting anybody.  It's a big time for shopping and you have a lot to do.  There are also a number of December sales you could take advantage of.  To help, I have a gift guide that will hopefully provide some inspiration.  However, this list of things to buy in December should do you some good as well.  Bear this in mind as you cross off your shopping list and consider…