Before you close your books for the year, there's one last thing you need to take care of: Christmas shopping for the people you work with. This means clients, bosses, and team members. While you're not required to give them presents, it's a good way to thank them for their business, mentorship, or hard work. But before you go out and purchase the first thing that catches your eye, brush up on business etiquette.

Which gifts are acceptable and which ones are equal to a faux pas? Click through the gallery to find out!

(Screencap from Mad Men courtesy of AMC)