As women, we often think we have to be all things to all people, all at the same time. As a wife, mother, actress and businesswoman, I definitely feel the pressure to perform well in all areas.
Celebrate your child's achievement, then rotate it when the next mini-masterpiece comes along. Then chuck the old picture. Don't worry that you're throwing away a memory. Your children will remember your praise more than they will remember the picture with macaroni and glitter glued on it.