Mine is having different names for the grandparents. Before LO was born, I was super annoyed at the idea of having a na na, mo mo, mi mi, pop, pop pop, and uppa (all real names btw). LO is 14 months old now and we’ve gotten so much help and support from these people I don’t know how we would have survived without them and now I would literally refer to any of them by any name they want. “Na na the all-knowing queen of everything the light touches”? You got it, boss! Just keep rolling that ball back to him.