For those of you new to O-A-M cooking, you can learn more by reading these books. Many of them are available through your local library, and of course I have them if any of you close by want to borrow them.
Once a Month Cooking - by Mimi Wilson
Dinner's In the Freezer - by Jill Bond
Cooking Among Friends - by Mary Tennant and Becki Visser
I've not personally read this one, The Everything Meals For A Month Cookbook: Smart Recipes To Help You Plan Ahead, Save Time, And Stay On Budget by Linda Larsen
There are also lots of sites online, just Google search "Once a month cooking" and you'll find tons of great tips, ideas and recipes.