I do change the names into names that say something about them and in that way I can tell them apart better. This goes especially in the VV series that is. Although in my current tribe there was a boy born named 'Temeharo'. Not long after his birth there was a girl born named 'Makatea'. I loved the combination of Indian-like ring to it, so I left it that way and watched them grow up. Ofcourse they got married when grown up