How can I make my own pumpkin pie spice?

One classic combination (that's probably the most familiar -- it's from the recipe on the back of the Libby's can) is 4 parts cinnamon, 2 parts ground ginger and 1 part ground or grated nutmeg, e.g., 1 tablespoon + 1 teaspoon of cinnamon, 2 teaspoons ginger and 1 teaspoon nutmeg. ;o)

Here's another option from Joy the Baker: http://joythebaker.com/2010/11/pumpkin-pie-spice/

Here is a link to All Recipes. This makes enough for 1 pie, but can be easily doubled.

http://m.allrecipes.com/recipe/20476/pumpkin-pie-spice-ii