To help keep your doll in good shape, carry it supporting the body. 
The dolls are made of light colored fabric so they show up well in photographs.  Use a permanent marker to indicate the front and back of the doll.  Add a face if desired.
Great tip:  One investigator dresses her doll in a white onesie and stocking hat.  She then tucks in weights as needed.  This can also help keep the dolls clean.
Do not carry a doll by the arm or leg as damage may occur due to the weight putting stress on the seams and fabric.