In a trifle dish, or large glass bowl, place a layer of cake cubes to cover bottom of dish. Spread layer of blueberry pie filling over the cake cubes. Be sure fruit shows on edge of dish.
Next place a layer of vanilla pudding over blueberry filling and spread to cover. Place a layer of Cool Whip over the pudding layer. Repeat layers: cake cubes, strawberry pie filling, pudding, and Cool Whip. Continue to layer until dish is filled, or all ingredients are used up. The last layer should be Cool Whip. (Layer it thick.)
Place fresh strawberries in a circle around edge of dish with points berries pointing outward. Mound some berries and a few sprigs of mint in center. Refrigerate as long as possible, even overnight. Makes lots. Enjoy!