Difficulty: Moderately Easy
Step1
Remove the top layer of cake from the rest of the cake, and remove the cake topper or anything else that isn't edible.
Step2
Refrigerate the cake overnight in order to firm up the icing.
Step3
Wrap the cake in plastic wrap and make sure the cake is thoroughly covered.
Step4
Place the wrapped cake pieces in freezer bags. If you want to be extra safe, you may want to double bag the pieces.
Step5
Use a vacuum sealer or even a straw to suck out the excess air from the bags. Any oxygen left in the bag will start to suck moisture from your cake.
Step6
Place the bags of cake into the bakery box, and wrap the outside of the box in plastic wrap.
Step7
Place the covered bakery box in the freezer, and do not disturb for one year.
Manassas Cakery (http://www.flickr.com/photos/weddingcakes/)