TIP #1: Always end the last layer with sauce then cheese.
TIP #2: Set aside some sauce for serving at the table. Some like a lot of sauce and some don't, so it's good to have it available.
TIP #3: To prevent tin foil from sticking to the food when in the oven, use toothpicks to prop up the foil on each corner and in the middle.
TIP #4: Sprinkling cheese on top just before serving gives a nicer presentation.