Back in the days when I made dolls (& occasionally still do, depending on mood and special request), I always made however many dolls or pairs of dolls at the same time. For example, the Raggedies pair in my avatar + two more pair, one for each of my daughters were made simultaneously, but each with different clothing fabrics ... first bodies, then hair, then clothes. Ditto the Humpty Dumpty dolls. I used to make dolls for co-workers occasionally, but always "needed" a matching one for myself. I would complete step 1 for all the dolls before moving on to step 2. It's less boring that way for me. I think I would do the same if I were making more than 1 identical quilt.