NOTE 1 - You can store unfrosted cake layers for upto a month in the freezer. Double wrap each cake layer with plastic wrap and then 1 layer of foil and store in the freezer. This is to insulate the cake layers and prevent "frost bite". When you're ready to use them, transfer them to the fridge to thaw out (but still remain cold) overnight.
NOTE 2 - For this 8 inch cake, I used 2, 8 inch cardboard cake trays. These cake trays have a 1/2 cm overhang, which is the perfect thickness for frosting. By properly centering the cake boards with that slight overhang, the straight scraper can be used to make sure there is even and smooth frosting all around the cake.