Holiday Helpers, pt. IV

Last minute advice from the following helpful Lifehacker internet resources:

How to exchange unwanted gift cards online
Track the gifts you give and receive via Giftbox
Calendar gift suggestions
Last minute printable gift tags
How to wrap any gift

The Science of Christmas, from NewScientist
The perfect holiday gift for college students, from the Kept-up Academic Librarian
Girl writes letter to Santa... please reopen public library, from The Republican
America's story: Christmas Day, from the Library of Congress
How to Keep Your New Year's Resolutions, via Librarian's Internet Index

UPDATE: Fast Facts about the Holidays, from the Census Bureau