In a large bowl, sift together flour, baking soda, and baking powder. Set aside. In the bowl of an electric mixer, cream butter and sugar until fluffy. Mix in spices and salt, then eggs and molasses. Add flour mixture; combine on low speed. Divide dough in thirds; wrap in plastic. Chill for at least 1 hour. Preheat oven to 350 F. On a floured surface, roll dough 1/8-inch thick. Cut into desired shapes with cookie cutters. Transfer to ungreased baking sheets; refrigerate until firm, 15 minutes. Bake 8 to 10 minutes, or until crisp but not darkened. Let cookies cool on wire racks, then decorate as desired. 
Recipe Information
Note: If you are going to use the cookies for decorations, make a hole for the cord or hook by poking the cookies with a toothpick or skewer as soon as they come out of the oven.