Grease and flour three 9" cake pans. If you've never done this before, it's easy. Rub the inside of the pan with butter. Throw a handful of flour in the pan, and shake the pan around like you're panning for gold, making sure to turn it on its side in order to get the edges and nooks and crannies of the pan.
Beat the butter until it becomes fluffy. Gradually add the sugar, beating until completely combined. Add the eggs, one at a time, making sure each egg is thoroughly mixed in before adding the next.
Mix in 2/3 cup of flour, followed by 1/4 cup of milk, repeating until all flour and milk have been added.
Beat in the vanilla extract.
Pour the batter into the three pans, and bake for 25 minutes (or until a toothpick inserted into the center of the pan comes out clean).
Once the cakes have cooled, place the first layer of your cake on a cake stand or plate, and line the edges of the stand with parchment paper. This will let you go crazy with frosting without ruining your clean stand.