Memories of children growing up. Your children or grandchildren, their moments of laughter, moments staring into the big world in wonder, moments of cuddles or holding hands. Catch them while you can.

Memories of teenagers, thirteen going on eighteen, eighteen going on twenty six. Independent in the extreme but turning to you when life gets really tough. Needing you to show them you are there, and care, despite the struggles that have gone before, and will doubtless carry on after, as they forge their way (or is it stagger their way?) into adulthood. Catch them while you can.

Memories of early adulthood. Beauty at its nadir, faces, bodies and souls as yet barely touched by life, no sign of the wrinkles and lines of experience that are the reward of a live lived to the full. Catch them while you can.

Memories of middle adulthood. The need for memories and thereby portraits does not stop with the appearance of the first line on your face - God never said you should be ashamed of your body once a wrinkle appears. Think of some of the most magnificent photo portraits you have seen, they are of people whose faces are carved with experience of life. Accept yourself for what you are, just as your family and friends accept you. Catch them while you can.

Memories of late adulthood. Have you grandchildren? They won't want pictures of you before they knew you, they want memories of you now, you and them together, catch them while you can.