When you buy a container of cake frosting, whip it with your mixer for a few minutes. The air will double it in size, so you can frost more cake (or cupcakes) with the same amount :) Oh - Also cuts down on the sugar and calories per serving ;)
Use canned frosting to make decorating icing. Just add 1TBLSP - 1/2c confectioners sugar per can & mix well with mixer. (Will expand) Try a little at a time. If too thick add water. Can also add drops of food coloring or 8oz of soft cream cheese.
The best icing for sugar cookies. It hardens nicely so you can stack cookies. Add different extracts to change flavors. ***1 cup powder sugar (confectioners sugar) **1 tablespoon milk ** 1 tablespoon light corn syrup ** 1 drop lemon juice. This will outline and fill approximately one dozen cookies