The times when they are little.  Savor them wanting to dress up.  Changing their minds.  Little spidermans and baseball players and pretty princesses.  Glitter on the cheeks and running through the crisp leaves.  Savor the warm smiles and giggles and grins and sticky hand-holding.  Savor and hold precious in your heart the memories of your children.  Hold fast to them and cherish these times.