Combine the two cake mixes into a labeled gallon-size ziplock bag. Include a measuring spoon, bag of caramels, can of apple pie filling, and a jar of cinnamon sugar. If the care package is international, include microwave safe paper cups. If the care package is domestic, add either a can of non-stick spray (for use with a ceramic mug) or microwave safe paper cups. Write out directions on an index card or directly on the ziplock bag. For a special touch, include a mug and spoon.