We've finally come to the time of year when we return home after finishing our last, brutal exam. As college students, we get to unwind for the next month or so. The unique comfort of your bed at home replaces that of the bed you've come to call your own for the two weeks prior: the leather seat on the quiet floor of the library. Shoppers struggle to find parking spots at the mall, those winter coats come out of the extra closet in the guest room, and the smell of Christmas trees, apple cider (extra spiked), and your favorite Aunt Sue's cooking all combine to present your nose with its favorite gift of the year -- the smell of the holidays.