I am going to share with you one of the coolest tips from bakedbree.com. Quote- most people do not believe that it works, but it does. I baked these cake layers the night before I was putting my cake together. I left them out on the counter with a slice of bread on top so that the cake layers would not become stale. The bread becomes hard as a rock, but the cake layers remain moist and as perfect as when I made them. I use this same trick with muffins, cupcakes, anything that I want to leave on the counter. Try it, it really does work.