1 package yellow cake mix
1 package JELL-O lime flavor gelatin (4 serving size)
1 package JELL-O lemon flavor gelatin (4 serving size)
2 tubs (8 ounces each) COOL WHIP

Heat oven to 350. Prepare cake mix as directed on package. Divide batter into two bowls. Add lime gelatin to one bowl and lemon gelatin to the other. Stir thoroughly. Pour each into separate wax-paper-lined, greased and floured 9-inch round cake pans. Bake 28-30 minutes until toothpick inserted in center comes out clean. Cool 15 minutes. Remove from pans. Cool on wire racks. Place lime cake layer on serving plate; spread with 1/2 tub whipped topping. Top with lemon cake layer. Frost cake with remaining whipped topping. Store in refrigerator until ready to serve. Delicious!