There are all kinds of wreaths, and instructions for constructing them, found in the pages of these books:
Smith, Ed. Making Classic Wreaths: Designing & Creating for All Occasions. [745.923 SMI]
Stewart, Martha. Great American Wreaths: The Best of Martha Stewart Living. [745.92 STE]
Veevers-Carter, Ming. Festive Decorations: Over 80 Decorative Ideas for Flowers, Wreaths, and Trees. [745.92 VEE]
We have plenty more on our shelves in the 745.92 section. If you're really good with your hands, and you don't want to venture outdoors to cut greens and other natural materials, we even have books that will show you how to make origami wreaths! One such book is Origami for Christmas by Chiyo Araki [736.982 ARA].
It might also be a good weekend to look for a Christmas tree. There are numerous places around New Hampshire where you can cut your own.
I noticed that the Hallmark Channel has a new Christmas movie this year that revolves around a tree seller, it's called, appropriately enough, Fir Crazy. You might want to look for it when checking your tv listings, or preview it by clicking here.