Parents with newborns- Black tops or t-shirts work quite well here for that classic closeup being held by the proud father or mother, just remember a spare top ready always helps in case one gets soiled.
Children - You should dress your children in clothes that you would like them photographed in, clothes that they like and feel comfortable works well. Have a favorite toy, or prop or keepsake handy. Have a spare change of clothes just in case.
Parents family shots - Wear what you feel comfortable in and would like to be photographed in



